Laravel website shows 500 error on cyberpanel

Remove those rules and enter the following:

RewriteEngine On

RewriteRule . /index.php [L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f

I recommend you use How to write Rewrite rules for OpenLiteSpeed! to write rules.

Note that is via cyberpanel not openlitespeed