diff --git a/pagermaid/listener.py b/pagermaid/listener.py
index cc74bd0..656dbf2 100644
--- a/pagermaid/listener.py
+++ b/pagermaid/listener.py
@@ -63,6 +63,8 @@ def listener(**args):
             except MessageTooLongError:
                 await context.edit("出错了呜呜呜 ~ 生成的输出太长，无法显示。")
             except BaseException:
+                exc_info = sys.exc_info()[1]
+                exc_format = format_exc()
                 try:
                     await context.edit("出错了呜呜呜 ~ 执行此命令时发生错误。")
                 except BaseException:
@@ -76,8 +78,8 @@ def listener(**args):
                              f"# Message: \n-----BEGIN TARGET MESSAGE-----\n" \
                              f"{context.text}\n-----END TARGET MESSAGE-----\n" \
                              f"# Traceback: \n-----BEGIN TRACEBACK-----\n" \
-                             f"{str(format_exc())}\n-----END TRACEBACK-----\n" \
-                             f"# Error: \"{str(sys.last_value)}\". \n"
+                             f"{str(exc_format)}\n-----END TRACEBACK-----\n" \
+                             f"# Error: \"{str(exc_info)}\". \n"
                     await attach_log(report, -1001441461877, f"exception.{time()}.pagermaid", None,
                                      "Error report generated.")
 
diff --git a/pagermaid/modules/plugin.py b/pagermaid/modules/plugin.py
index ae7439d..6820db1 100644
--- a/pagermaid/modules/plugin.py
+++ b/pagermaid/modules/plugin.py
@@ -228,6 +228,9 @@ async def plugin(context):
     elif context.parameter[0] == "update":
         unneed_update = "无需更新："
         need_update = "\n需要更新："
+        if not exists(f"{plugin_directory}version.json"):
+            await context.edit("安装一个仓库内插件再试试？")
+            return
         with open(f"{plugin_directory}version.json", 'r', encoding="utf-8") as f:
             version_json = json.load(f)
         plugin_online = \