后台上传主题后，点了切换后，网站就变成如下显示：
Whitelabel Error Page
This application has no configured error view, so you are seeing this as a fallback.
Tue Jan 03 08:54:18 CST 2023
[90acd1cf-1004] There was an unexpected error (type=Internal Server Error, status=500).
然后必须去重新docker-compose up -d才可以正常显示
