fix #1864

app/chain/site.py

@@ -124,13 +124,12 @@ class SiteChain(ChainBase):
                     return True, f"连接成功，但更新状态失败"
         return False, "Cookie已失效"
 
-    @staticmethod
-    def __ptlsp_test(site: Site) -> Tuple[bool, str]:
+    def __ptlsp_test(self, site: Site) -> Tuple[bool, str]:
         """
         判断站点是否已经登陆：ptlsp
         """
         site.url = f"{site.url}index.php"
-        return __test(site)
+        return self.__test(site)
 
     @staticmethod
     def __parse_favicon(url: str, cookie: str, ua: str) -> Tuple[str, Optional[str]]: