diff --git a/app/modules/filemanager/storages/alipan.py b/app/modules/filemanager/storages/alipan.py
index c9621912..1c3db540 100644
--- a/app/modules/filemanager/storages/alipan.py
+++ b/app/modules/filemanager/storages/alipan.py
@@ -20,6 +20,10 @@ from app.utils.string import StringUtils
 lock = threading.Lock()
 
 
+class NoCheckInException(Exception):
+    pass
+
+
 class AliPan(StorageBase, metaclass=Singleton):
     """
     阿里云盘相关操作
@@ -64,7 +68,7 @@ class AliPan(StorageBase, metaclass=Singleton):
         检查会话是否过期
         """
         if not self.access_token:
-            raise Exception("【阿里云盘】请先扫码登录！")
+            raise NoCheckInException("【阿里云盘】请先扫码登录！")
 
     @property
     def _default_drive_id(self) -> str:
@@ -74,7 +78,7 @@ class AliPan(StorageBase, metaclass=Singleton):
         conf = self.get_conf()
         drive_id = conf.get("resource_drive_id") or conf.get("backup_drive_id") or conf.get("default_drive_id")
         if not drive_id:
-            raise Exception("【阿里云盘】请先扫码登录！")
+            raise NoCheckInException("【阿里云盘】请先扫码登录！")
         return drive_id
 
     @property
@@ -951,5 +955,5 @@ class AliPan(StorageBase, metaclass=Singleton):
                 total=total_size,
                 available=total_size - used_size
             )
-        except KeyError:
+        except NoCheckInException:
             return None
diff --git a/app/modules/filemanager/storages/u115.py b/app/modules/filemanager/storages/u115.py
index eda7edb0..edd5d48e 100644
--- a/app/modules/filemanager/storages/u115.py
+++ b/app/modules/filemanager/storages/u115.py
@@ -24,6 +24,10 @@ from app.utils.string import StringUtils
 lock = threading.Lock()
 
 
+class NoCheckInException(Exception):
+    pass
+
+
 class U115Pan(StorageBase, metaclass=Singleton):
     """
     115相关操作
@@ -70,7 +74,7 @@ class U115Pan(StorageBase, metaclass=Singleton):
         检查会话是否过期
         """
         if not self.access_token:
-            raise Exception("【115】请先扫码登录！")
+            raise NoCheckInException("【115】请先扫码登录！")
 
     @property
     def access_token(self) -> Optional[str]:
@@ -850,5 +854,5 @@ class U115Pan(StorageBase, metaclass=Singleton):
                 total=space["all_total"]["size"],
                 available=space["all_remain"]["size"]
             )
-        except KeyError:
+        except NoCheckInException:
             return None