I had matomo running under domain.com/s/ and now i relaunched my project and copied all matomo files to the new domain.com/s/ again (its the same location as before, from a domain perspective. i just changed the internal file paths).
But now there is an 500 error with no more information…
How can i solve this?
I did not find any path specific settings in the config (like absolute paths etc) that could cause this error… 
Matomo should not even know that the internal location has changed…
After a run of matomo maintenance its now working again.