Can't launch my kickstart.php file ti install my website

I am sure there are so post in this forum about it (i think), but i can not find it, so i made a new one. Please forgive me if there is.

After installing a few websites on my server, now i tried to install a new one. I created the user, the domain, etc... But the page gives me this 500 error:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at webmaster@revivalads.com to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Can someone tell me how to solve this? The domain in question is revivalads.com


Thank you.

try this
https://wiki.centos-webpanel.com/500-internal-server-error