diff --git a/app/core/plugin.py b/app/core/plugin.py
index 0ea1bef8..33441fde 100644
--- a/app/core/plugin.py
+++ b/app/core/plugin.py
@@ -793,10 +793,9 @@ class PluginManager(metaclass=Singleton):
         # 已安装插件
         installed_apps = self.systemconfig.get(SystemConfigKey.UserInstalledPlugins) or []
         # 获取在线插件
-        online_plugins = self.pluginhelper.get_plugins(market, package_version) or {}
-        if not online_plugins:
-            if not package_version:
-                logger.warning(f"获取插件库失败：{market}，请检查 GitHub 网络连接")
+        online_plugins = self.pluginhelper.get_plugins(market, package_version)
+        if online_plugins is None:
+            logger.warning(f"获取{package_version if package_version else ''}插件库失败：{market}，请检查 GitHub 网络连接")
             return []
         ret_plugins = []
         add_time = len(online_plugins)
diff --git a/app/helper/plugin.py b/app/helper/plugin.py
index 616e41b1..a38469dd 100644
--- a/app/helper/plugin.py
+++ b/app/helper/plugin.py
@@ -63,6 +63,7 @@ class PluginHelper(metaclass=Singleton):
                 return json.loads(res.text)
             except json.JSONDecodeError:
                 logger.error(f"插件包数据解析失败：{res.text}")
+                return None
         return {}
 
     def get_plugin_package_version(self, pid: str, repo_url: str, package_version: str = None) -> Optional[str]: