AAC website don't work

[Elgenady]

when start to open website get this page


i don't know what happen and when ask my friend he told me he was try to add spoof system to source but he fail
anyone know how i can fix this
i'm use 0.4 and gesior for websit
use debian 10

 

[Gesior.pl]

Errors are hidden by default on Debian 10. It prints '500', but no information what is wrong.
You can find errors in /var/log/apache2/error.log or /var/log/nginx/error.log