diff --git a/app/modules/emby/__init__.py b/app/modules/emby/__init__.py
index 0956dbd9..8b3680ad 100644
--- a/app/modules/emby/__init__.py
+++ b/app/modules/emby/__init__.py
@@ -80,7 +80,7 @@ class EmbyModule(_ModuleBase, _MediaServerBase[Emby]):
         # 确定要认证的服务器列表
         if service_name:
             # 如果指定了服务名，获取该服务实例
-            servers = [(service_name, self.get_instance(service_name))]
+            servers = [(service_name, server)] if (server := self.get_instance(service_name)) else []
         else:
             # 如果没有指定服务名，遍历所有服务
             servers = self.get_instances().items()
diff --git a/app/modules/jellyfin/__init__.py b/app/modules/jellyfin/__init__.py
index 60ee4df7..9340a6ea 100644
--- a/app/modules/jellyfin/__init__.py
+++ b/app/modules/jellyfin/__init__.py
@@ -80,7 +80,7 @@ class JellyfinModule(_ModuleBase, _MediaServerBase[Jellyfin]):
         # 确定要认证的服务器列表
         if service_name:
             # 如果指定了服务名，获取该服务实例
-            servers = [(service_name, self.get_instance(service_name))]
+            servers = [(service_name, server)] if (server := self.get_instance(service_name)) else []
         else:
             # 如果没有指定服务名，遍历所有服务
             servers = self.get_instances().items()
diff --git a/app/modules/plex/__init__.py b/app/modules/plex/__init__.py
index b3852bbf..8381b241 100644
--- a/app/modules/plex/__init__.py
+++ b/app/modules/plex/__init__.py
@@ -80,7 +80,7 @@ class PlexModule(_ModuleBase, _MediaServerBase[Plex]):
         # 确定要认证的服务器列表
         if service_name:
             # 如果指定了服务名，获取该服务实例
-            servers = [(service_name, self.get_instance(service_name))]
+            servers = [(service_name, server)] if (server := self.get_instance(service_name)) else []
         else:
             # 如果没有指定服务名，遍历所有服务
             servers = self.get_instances().items()