Redirect breaks LetsEncrypt issue/renew
If you use the Redirect feature with setting "permanent" and a path configured, the pre-defined acme-challenge directory redirects to /usr/local/... are no longer working correctly as the acme-challenge gets redirected to something like
http:///<redirect_path>/.well-known/acme-challenge/...
and thus will display 404 or 403 and not renew or issue the certificate correctly. If the redirect feature in the WebUI ist configured, that should also change the preconfigured "/.well-known/acme-challenge" config block to "/<redirect_path/.well-known/acme-challenge"
happened on ISPConfig latest stable (3.1.6) running with nginx web server. Had a software installed in a sub-path element () and configured the redirect as type "permanent" with path "" so calls to https:/// will auto-rewritten to .../app/
Just spotted today, that LE cert was broken as it was never renewed correctly.