I install the nginx. When i configure add the http server and location it will show the error as pic. But i cannot find the error message about it. Did i need manually add at config file ?
Did you move the UI to a different port than 443 and disable the HTTP -> HTTPS redirection?
It look like compatibility problem with the Phalcon framework after upgrade the OPNsense
This is solved. https://github.com/opnsense/plugins/issues/4342