无法使用Launchbar扩展

[jkhnfk]

在使用 Launchbar 扩展时，调出 WeChatHelper 扩展时，输入一些字符，Launchbar 就会弹出提示：An error occurred while running “WeChatHelper” See Console logs for further information.
进入 Console 查看，其中相关的内容是这样的：
WeChatHelper (com.vdeamov.LaunchBar.action.WeChatHelper): Script Error: </usr/local/bin/python3 /Users/jkhnfk/Dropbox/software syn/Launchbar/Actions/WeChatHelper.lbaction/Contents/Scripts/search.py mmm jkjk>
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/urllib3/connection.py", line 159, in _new_conn
(self._dns_host, self.port), self.timeout, **extra_kw)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/urllib3/util/connection.py", line 80, in create_connection
raise err
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/urllib3/util/connection.py", line 70, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 61] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/u<…>

不知道是何原因。请问如何解决呢，谢谢您。