I have installed openproject at my apache2 server and configuration seems to run without errors. However I am not able to gain access via http or https.

I have installed openproject at a headless server, I have full root access to. As the installation guides point to complete different directories here is the configuration for SUSE: openproject resides in /opt/openproject and I recognized a user folder for /openproject has been created in /home

Surprisingly apache2ctl shows
AH00112: Warning: DocumentRoot [*/etc*/openproject/frontend/public] does not exist

I have no idea where the /etc/openproject comes from. I have double checked the two .conf files (for :80 and :443) and there is only /opt/openproject/… in.

Going to the sub-domain https://project.xxxx.net/ something loads… but only the Tab description “OpenProject Testing” with the page content “Content” on a white background. The Loading … part of the html is alredy missing.

I have changed the /public folder access rights to wwwrun:www as openproject:openproject gave me an error (non access granted).

Does anybody has a suggestion where to start my further investigation? Thank you!

s. do I need to specify proxyPass or alias?