diff --git a/src/pages/AutoLib.py b/src/pages/AutoLib.py
index fab83e4..6b608e0 100644
--- a/src/pages/AutoLib.py
+++ b/src/pages/AutoLib.py
@@ -149,9 +149,6 @@ class AutoLib(MsgBase):
         except WebDriverException as e:
             self._showTrace(f"浏览器驱动初始化失败: {e}", self.TraceLevel.ERROR)
             return False
-        except Exception as e:
-            self._showTrace(f"浏览器驱动初始化失败: {e}", self.TraceLevel.ERROR)
-            return False
         self._showTrace(f"浏览器驱动已初始化, 类型: {self.__driver_type}, 路径: {self.__driver_path}")
         return True
 
diff --git a/src/pages/LoginPage.py b/src/pages/LoginPage.py
index db34756..3194276 100644
--- a/src/pages/LoginPage.py
+++ b/src/pages/LoginPage.py
@@ -85,9 +85,7 @@ class LoginPage:
                 EC.presence_of_element_located(self.CAPTCHA_IMG)
             )
             return True
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except TimeoutException:
             return False
 
     def fillCredentials(
@@ -104,17 +102,21 @@ class LoginPage:
             el.clear()
             el.send_keys(password)
             return True
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
 
     def getCaptchaImageSrc(
         self,
-    ) -> str:
+    ) -> str | None:
 
-        captcha_el = self._driver.find_element(*self.CAPTCHA_IMG)
-        return captcha_el.get_attribute("src")
+        # return 'None' if captcha image element is not found.
+        # But the 'get_attribute("src")' also return 'None' if there's no attribute with
+        # that name, which is not what we want.
+        try:
+            captcha_el = self._driver.find_element(*self.CAPTCHA_IMG)
+            return captcha_el.get_attribute("src")
+        except NoSuchElementException:
+            return None
 
     def refreshCaptcha(
         self,
@@ -123,10 +125,7 @@ class LoginPage:
         try:
             self._driver.find_element(*self.CAPTCHA_IMG).click()
             return True
-        except (NoSuchElementException, TimeoutException,
-                ElementNotInteractableException):
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
 
     def fillCaptcha(
@@ -139,9 +138,7 @@ class LoginPage:
             el.clear()
             el.send_keys(captcha_text)
             return True
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
 
     def clickLogin(
@@ -151,10 +148,7 @@ class LoginPage:
         try:
             self._driver.find_element(*self.LOGIN_BUTTON).click()
             return True
-        except (NoSuchElementException, TimeoutException,
-                ElementNotInteractableException):
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
 
     def waitLoginSuccess(
@@ -172,9 +166,7 @@ class LoginPage:
                 EC.presence_of_element_located(self.SUCCESS_INDICATOR_CONTENT)
             )
             return True
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except TimeoutException:
             return False
 
     def stopPageLoad(
diff --git a/src/pages/MainShell.py b/src/pages/MainShell.py
index a9b6247..9e3bf18 100644
--- a/src/pages/MainShell.py
+++ b/src/pages/MainShell.py
@@ -14,8 +14,10 @@ from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
 from selenium.webdriver.remote.webdriver import WebDriver
 from selenium.common.exceptions import (
+    ElementNotInteractableException,
     NoSuchElementException,
     TimeoutException,
+    WebDriverException,
 )
 
 from pages.ReserveView import ReserveView
@@ -38,6 +40,15 @@ class MainShell:
 
         self._driver = driver
 
+    def _clickTab(
+        self,
+        locator: tuple,
+    ) -> None:
+
+        WebDriverWait(self._driver, 2).until(
+            EC.element_to_be_clickable(locator)
+        ).click()
+
     def gotoReserveView(
         self,
     ) -> ReserveView:
@@ -65,9 +76,7 @@ class MainShell:
         try:
             self._driver.find_element(*self.TAB_LOGOUT).click()
             return True
-        except NoSuchElementException:
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
 
     def waitCheckinButton(
@@ -81,8 +90,6 @@ class MainShell:
             return True
         except TimeoutException:
             return False
-        except Exception:
-            return False
 
     def waitExtendButton(
         self,
@@ -95,40 +102,50 @@ class MainShell:
             return True
         except TimeoutException:
             return False
-        except Exception:
-            return False
 
     def isCheckinButtonDisabled(
         self,
     ) -> bool:
 
-        btn = self._driver.find_element(*self.BTN_CHECKIN)
-        return "disabled" in btn.get_attribute("class")
+        try:
+            btn = self._driver.find_element(*self.BTN_CHECKIN)
+            return "disabled" in btn.get_attribute("class")
+        except NoSuchElementException:
+            return True
 
     def isExtendButtonDisabled(
         self,
     ) -> bool:
 
-        btn = self._driver.find_element(*self.BTN_EXTEND)
-        return "disabled" in btn.get_attribute("class")
+        try:
+            btn = self._driver.find_element(*self.BTN_EXTEND)
+            return "disabled" in btn.get_attribute("class")
+        except NoSuchElementException:
+            return True
 
     def clickCheckinButton(
         self,
     ) -> None:
 
-        btn = WebDriverWait(self._driver, 2).until(
-            EC.element_to_be_clickable(self.BTN_CHECKIN)
-        )
-        btn.click()
+        try:
+            btn = WebDriverWait(self._driver, 2).until(
+                EC.element_to_be_clickable(self.BTN_CHECKIN)
+            )
+            btn.click()
+        except (TimeoutException, ElementNotInteractableException):
+            return
 
     def clickExtendButton(
         self,
     ) -> None:
 
-        btn = WebDriverWait(self._driver, 2).until(
-            EC.element_to_be_clickable(self.BTN_EXTEND)
-        )
-        btn.click()
+        try:
+            btn = WebDriverWait(self._driver, 2).until(
+                EC.element_to_be_clickable(self.BTN_EXTEND)
+            )
+            btn.click()
+        except (TimeoutException, ElementNotInteractableException):
+            return
 
     def enableCheckinButtonByJS(
         self,
@@ -154,13 +171,7 @@ class MainShell:
         self,
     ) -> None:
 
-        self._driver.refresh()
-
-    def _clickTab(
-        self,
-        locator: tuple,
-    ) -> None:
-
-        WebDriverWait(self._driver, 2).until(
-            EC.element_to_be_clickable(locator)
-        ).click()
+        try:
+            self._driver.refresh()
+        except (TimeoutException, WebDriverException):
+            return
diff --git a/src/pages/RecordsView.py b/src/pages/RecordsView.py
index dc42faa..2c6d5d6 100644
--- a/src/pages/RecordsView.py
+++ b/src/pages/RecordsView.py
@@ -44,8 +44,6 @@ class RecordsView:
             return self._driver.find_elements(*self.RECORDS_LIST)
         except TimeoutException:
             return None
-        except Exception:
-            return None
 
     def getRecordTimeElement(
         self,
@@ -71,8 +69,6 @@ class RecordsView:
             )
         except TimeoutException:
             return False
-        except Exception:
-            return False
         try:
             more_btn = self._driver.find_element(*self.MORE_BTN)
             if more_btn.is_displayed() and more_btn.is_enabled():
@@ -82,8 +78,6 @@ class RecordsView:
             return False
         except (NoSuchElementException, StaleElementReferenceException):
             return False
-        except Exception:
-            return False
 
     def getRecordText(
         self,
diff --git a/src/pages/ReserveView.py b/src/pages/ReserveView.py
index 1f7e459..c8f1366 100644
--- a/src/pages/ReserveView.py
+++ b/src/pages/ReserveView.py
@@ -53,6 +53,50 @@ class ReserveView:
 
         self._driver = driver
 
+    def _clickOptionByJS(
+        self,
+        trigger_id: str,
+        option_css: str,
+    ) -> bool:
+
+        script = f"""
+        try {{
+            var trigger = document.getElementById('{trigger_id}');
+            if (trigger) {{
+                trigger.click();
+                var option = document.querySelector("{option_css}");
+                if (option) {{
+                    option.click();
+                    return true;
+                }}
+                return false;
+            }}
+            return false;
+        }} catch (e) {{
+            return false;
+        }}
+        """
+        result = self._driver.execute_script(script)
+        time.sleep(0.1)
+        return result
+
+    def _clickOption(
+        self,
+        trigger: tuple,
+        option: tuple,
+    ) -> bool:
+
+        try:
+            WebDriverWait(self._driver, 2).until(
+                EC.element_to_be_clickable(trigger)
+            ).click()
+            WebDriverWait(self._driver, 2).until(
+                EC.element_to_be_clickable(option)
+            ).click()
+            return True
+        except (TimeoutException, ElementNotInteractableException):
+            return False
+
     def selectDate(
         self,
         date_str: str,
@@ -109,21 +153,15 @@ class ReserveView:
             ).click()
         except (TimeoutException, ElementNotInteractableException):
             return None
-        except Exception:
-            return None
         try:
             WebDriverWait(self._driver, 2).until(
                 EC.element_to_be_clickable((By.ID, self.ROOM_BTN_FMT.format(room=room)))
             ).click()
         except (TimeoutException, ElementNotInteractableException):
             return None
-        except Exception:
-            return None
         try:
             return SeatMapDialog(self._driver)
-        except (TimeoutException):
-            return None
-        except Exception:
+        except TimeoutException:
             return None
 
     def submitReserve(
@@ -137,57 +175,12 @@ class ReserveView:
             return True
         except (TimeoutException, ElementNotInteractableException):
             return False
-        except Exception:
-            return False
 
     def refresh(
         self,
     ) -> None:
 
-        self._driver.refresh()
-
-    def _clickOptionByJS(
-        self,
-        trigger_id: str,
-        option_css: str,
-    ) -> bool:
-
-        script = f"""
-        try {{
-            var trigger = document.getElementById('{trigger_id}');
-            if (trigger) {{
-                trigger.click();
-                var option = document.querySelector("{option_css}");
-                if (option) {{
-                    option.click();
-                    return true;
-                }}
-                return false;
-            }}
-            return false;
-        }} catch (e) {{
-            return false;
-        }}
-        """
-        result = self._driver.execute_script(script)
-        time.sleep(0.1)
-        return result
-
-    def _clickOption(
-        self,
-        trigger: tuple,
-        option: tuple,
-    ) -> bool:
-
         try:
-            WebDriverWait(self._driver, 2).until(
-                EC.element_to_be_clickable(trigger)
-            ).click()
-            WebDriverWait(self._driver, 2).until(
-                EC.element_to_be_clickable(option)
-            ).click()
-            return True
-        except (TimeoutException, ElementNotInteractableException):
-            return False
-        except Exception:
-            return False
+            self._driver.refresh()
+        except TimeoutException:
+            return
diff --git a/src/pages/components/CheckinResultDialog.py b/src/pages/components/CheckinResultDialog.py
index 7843f41..b8252b1 100644
--- a/src/pages/components/CheckinResultDialog.py
+++ b/src/pages/components/CheckinResultDialog.py
@@ -45,9 +45,8 @@ class CheckinResultDialog(Dialog):
             self._waitPresence(self.RESULT_MSG)
             el = self._find(*self.RESULT_MSG)
             return el.text
-        except (TimeoutException, NoSuchElementException, StaleElementReferenceException):
-            return ""
-        except Exception:
+        except (TimeoutException, NoSuchElementException,
+                StaleElementReferenceException):
             return ""
 
     def getDetails(
@@ -59,8 +58,6 @@ class CheckinResultDialog(Dialog):
             return [el.text for el in elements if el.text.strip()]
         except (NoSuchElementException, StaleElementReferenceException):
             return []
-        except Exception:
-            return []
 
     def clickOk(
         self,
@@ -69,7 +66,5 @@ class CheckinResultDialog(Dialog):
         try:
             self._waitClickable(self.OK_BTN).click()
             return True
-        except (NoSuchElementException, TimeoutException, ElementNotInteractableException):
-            return False
-        except Exception:
+        except (TimeoutException, ElementNotInteractableException):
             return False
diff --git a/src/pages/components/RenewDialog.py b/src/pages/components/RenewDialog.py
index 150eca1..3628f1a 100644
--- a/src/pages/components/RenewDialog.py
+++ b/src/pages/components/RenewDialog.py
@@ -10,6 +10,7 @@ See the LICENSE file for details.
 from selenium.common.exceptions import (
     ElementNotInteractableException,
     NoSuchElementException,
+    StaleElementReferenceException,
     TimeoutException,
 )
 from selenium.webdriver.common.by import By
@@ -50,9 +51,7 @@ class RenewDialog(Dialog):
             self._waitVisible(self.ROOT)
             self._waitPresence(self.MESSAGE_HEAD)
             self._waitPresence(self.RESULT_MSG)
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except TimeoutException:
             return False
         head_msg = self._find(*self.MESSAGE_HEAD).text.strip()
         if "警告" in head_msg:
@@ -60,9 +59,7 @@ class RenewDialog(Dialog):
         try:
             self._waitAllPresence(self.TIME_OPTS)
             self._waitPresence(self.OK_BTN)
-        except (NoSuchElementException, TimeoutException):
-            return False
-        except Exception:
+        except TimeoutException:
             return False
         return True
 
@@ -70,13 +67,19 @@ class RenewDialog(Dialog):
         self,
     ) -> str:
 
-        return self._find(*self.MESSAGE_HEAD).text.strip()
+        try:
+            return self._find(*self.MESSAGE_HEAD).text.strip()
+        except (NoSuchElementException, StaleElementReferenceException):
+            return ""
 
     def getResultMessage(
         self,
     ) -> str:
 
-        return self._find(*self.RESULT_MSG).text.strip()
+        try:
+            return self._find(*self.RESULT_MSG).text.strip()
+        except (NoSuchElementException, StaleElementReferenceException):
+            return ""
 
     def getTimeOptions(
         self,
@@ -101,7 +104,10 @@ class RenewDialog(Dialog):
             prefer_earlier,
         )
         if result.selected_index >= 0:
-            all_time_opts[result.selected_index].click()
+            try:
+                all_time_opts[result.selected_index].click()
+            except (ElementNotInteractableException, StaleElementReferenceException):
+                return TimeSelectionResult(free_times=result.free_times)
         return result
 
     def getOkButton(
@@ -117,8 +123,5 @@ class RenewDialog(Dialog):
         try:
             self._find(*self.OK_BTN).click()
             return True
-        except (NoSuchElementException, TimeoutException,
-                ElementNotInteractableException):
-            return False
-        except Exception:
+        except (NoSuchElementException, ElementNotInteractableException):
             return False
diff --git a/src/pages/components/ReserveResultDialog.py b/src/pages/components/ReserveResultDialog.py
index 8ddb858..dbe8338 100644
--- a/src/pages/components/ReserveResultDialog.py
+++ b/src/pages/components/ReserveResultDialog.py
@@ -45,8 +45,6 @@ class ReserveResultDialog(Dialog):
             return self._find(*self._titleLocator()).text
         except (NoSuchElementException, StaleElementReferenceException):
             return ""
-        except Exception:
-            return ""
 
     def isSuccess(
         self,
@@ -77,5 +75,3 @@ class ReserveResultDialog(Dialog):
             return [el.text for el in elements if el.text.strip()]
         except (NoSuchElementException, StaleElementReferenceException):
             return []
-        except Exception:
-            return []
diff --git a/src/pages/components/SeatMapDialog.py b/src/pages/components/SeatMapDialog.py
index 9f9a5d5..23f82ed 100644
--- a/src/pages/components/SeatMapDialog.py
+++ b/src/pages/components/SeatMapDialog.py
@@ -43,9 +43,7 @@ class SeatMapDialog(Dialog):
 
         try:
             self._waitAllPresence(self.SEAT_ITEMS)
-        except (NoSuchElementException, TimeoutException):
-            return None
-        except Exception:
+        except TimeoutException:
             return None
         try:
             seat_el = self._find(By.ID, f"seat_{int(seat_id):03d}")
@@ -58,8 +56,6 @@ class SeatMapDialog(Dialog):
         except (NoSuchElementException, ValueError, TimeoutException,
                 ElementNotInteractableException, StaleElementReferenceException):
             pass
-        except Exception:
-            pass
         try:
             all_seats = self._findAll(*self.SEAT_ITEMS)
             seat_id_upper = seat_id.lstrip('0').upper()
@@ -76,5 +72,3 @@ class SeatMapDialog(Dialog):
         except (NoSuchElementException, TimeoutException,
                 ElementNotInteractableException, StaleElementReferenceException):
             return None
-        except Exception:
-            return None
diff --git a/src/pages/components/TimeSelectDialog.py b/src/pages/components/TimeSelectDialog.py
index 1a843a3..f911591 100644
--- a/src/pages/components/TimeSelectDialog.py
+++ b/src/pages/components/TimeSelectDialog.py
@@ -13,7 +13,8 @@ import logging
 from typing import TYPE_CHECKING, Callable, Optional
 
 from selenium.common.exceptions import (
-    NoSuchElementException,
+    ElementNotInteractableException,
+    StaleElementReferenceException,
     TimeoutException,
 )
 from selenium.webdriver.common.by import By
@@ -106,9 +107,7 @@ class TimeSelectDialog(Dialog):
             self._waitAllPresence(
                 (By.CSS_SELECTOR, f"#{time_id} ul li a")
             )
-        except (NoSuchElementException, TimeoutException):
-            return []
-        except Exception:
+        except TimeoutException:
             return []
         return self._findAll(
             By.CSS_SELECTOR,
@@ -133,7 +132,10 @@ class TimeSelectDialog(Dialog):
             prefer_earlier,
         )
         if result.selected_index >= 0:
-            all_time_opts[result.selected_index].click()
+            try:
+                all_time_opts[result.selected_index].click()
+            except (ElementNotInteractableException, StaleElementReferenceException):
+                return TimeSelectionResult(free_times=result.free_times)
         return result
 
     def selectTimeRange(
diff --git a/src/pages/flows/CheckinFlow.py b/src/pages/flows/CheckinFlow.py
index bb0689e..73ee581 100644
--- a/src/pages/flows/CheckinFlow.py
+++ b/src/pages/flows/CheckinFlow.py
@@ -10,6 +10,7 @@ See the LICENSE file for details.
 import queue
 
 from selenium.common.exceptions import (
+    ElementNotInteractableException,
     NoSuchElementException,
     TimeoutException,
 )
@@ -83,9 +84,6 @@ class CheckinFlow(MsgBase):
                     dialog.clickOk()
                     self._showTrace(f"用户 {username} 签到失败 !", self.TraceLevel.ERROR)
                     return False
-        except (NoSuchElementException, TimeoutException):
-            self._showTrace("签到时发生未知错误 !", self.TraceLevel.ERROR)
-            return False
-        except Exception:
+        except (TimeoutException, NoSuchElementException, ElementNotInteractableException):
             self._showTrace("签到时发生未知错误 !", self.TraceLevel.ERROR)
             return False
diff --git a/src/pages/flows/RenewFlow.py b/src/pages/flows/RenewFlow.py
index b8f6421..e52dd52 100644
--- a/src/pages/flows/RenewFlow.py
+++ b/src/pages/flows/RenewFlow.py
@@ -39,6 +39,28 @@ class RenewFlow(MsgBase):
         self._driver: WebDriver = driver
         self._shell: MainShell = shell
 
+    def _validateRenewTime(
+        self,
+        end_time: str,
+        target_renew_mins: int,
+    ) -> bool:
+
+        if target_renew_mins > self.LIBRARY_CLOSE_MINS:
+            actual_renew_duration = self.LIBRARY_CLOSE_MINS - timeStrToMins(end_time)
+            if actual_renew_duration <= 0:
+                self._showTrace(
+                    f"当前结束时间 {end_time} 已接近闭馆时间,无法续约 !", self.TraceLevel.ERROR
+                )
+                return False
+            self._showTrace(
+                f"续约时间已调整至闭馆时间 "
+                f"{minsToTimeStr(self.LIBRARY_CLOSE_MINS)},"
+                f"实际续约时长为 "
+                f"{actual_renew_duration // 60} 小时 "
+                f"{actual_renew_duration % 60} 分钟"
+            )
+        return True
+
     def execute(
         self,
         username: str,
@@ -106,37 +128,7 @@ class RenewFlow(MsgBase):
                     self._showTrace(f"当前可供续约的时间有: {result.free_times}")
                 self._shell.refresh()
                 return False
-        except (NoSuchElementException, TimeoutException) as e:
+        except (NoSuchElementException, TimeoutException, ElementNotInteractableException) as e:
             self._showTrace(f"用户 {username} 续约失败 ! : {e}", self.TraceLevel.ERROR)
             self._shell.refresh()
             return False
-        except (ElementNotInteractableException) as e:
-            self._showTrace(f"用户 {username} 续约失败 ! : {e}", self.TraceLevel.ERROR)
-            self._shell.refresh()
-            return False
-        except Exception as e:
-            self._showTrace(f"用户 {username} 续约失败 ! : {e}", self.TraceLevel.ERROR)
-            self._shell.refresh()
-            return False
-
-    def _validateRenewTime(
-        self,
-        end_time: str,
-        target_renew_mins: int,
-    ) -> bool:
-
-        if target_renew_mins > self.LIBRARY_CLOSE_MINS:
-            actual_renew_duration = self.LIBRARY_CLOSE_MINS - timeStrToMins(end_time)
-            if actual_renew_duration <= 0:
-                self._showTrace(
-                    f"当前结束时间 {end_time} 已接近闭馆时间,无法续约 !", self.TraceLevel.ERROR
-                )
-                return False
-            self._showTrace(
-                f"续约时间已调整至闭馆时间 "
-                f"{minsToTimeStr(self.LIBRARY_CLOSE_MINS)},"
-                f"实际续约时长为 "
-                f"{actual_renew_duration // 60} 小时 "
-                f"{actual_renew_duration % 60} 分钟"
-            )
-        return True
diff --git a/src/pages/flows/ReserveFlow.py b/src/pages/flows/ReserveFlow.py
index 1722903..88a2864 100644
--- a/src/pages/flows/ReserveFlow.py
+++ b/src/pages/flows/ReserveFlow.py
@@ -12,7 +12,6 @@ from dataclasses import dataclass
 
 from selenium.common.exceptions import (
     ElementNotInteractableException,
-    NoSuchElementException,
     TimeoutException,
 )
 from selenium.webdriver.remote.webdriver import WebDriver
@@ -70,10 +69,7 @@ class ReserveFlow(MsgBase):
 
         try:
             view = self._shell.gotoReserveView()
-        except (NoSuchElementException, TimeoutException) as e:
-            self._showTrace(f"加载预约选座页面失败 ! : {e}", self.TraceLevel.ERROR)
-            return False
-        except Exception as e:
+        except (TimeoutException, ElementNotInteractableException) as e:
             self._showTrace(f"加载预约选座页面失败 ! : {e}", self.TraceLevel.ERROR)
             return False
         if not view.selectDate(ctx.date):
@@ -140,8 +136,6 @@ class ReserveFlow(MsgBase):
                                 self._showTrace("预约结果加载失败 !", self.TraceLevel.ERROR)
                     except (TimeoutException, ElementNotInteractableException):
                         self._showTrace("预约提交失败 !", self.TraceLevel.ERROR)
-                    except Exception:
-                        self._showTrace("预约提交失败 !", self.TraceLevel.ERROR)
         if not submit_reserve and have_hover_on_page:
             view.refresh()
         if reserve_success: