Nextcloud as subdomain


I am using CyberPanel with openLitespeed on Ubuntu 18.04, I created, everything working and I created two subdomains, first domain it’s an opencart, everything ok, second domain I installed nextcloud, if I access after installation it I recive this error:

Internal Server Error

The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.

I don’t see nothing in logs.

Everything it’s configured ok, permissions ok because if I move files from subdomain to domain ( -> it’s working perfect, I can log in, but on subdomain not working.

What can I do?