Cpanel Whm server error "500 Internal Server Error" when running magento2.2 web site after migration from plesk server to cpanel server. And server's back up set up

Whm cpanel server error "500 Internal Server Error" when running magento2.2 web site after migration from plesk server to cpanel server. The Magento2.2 site works fine in our plesk server. The files and database are exactly the same in both servers. For older magento2.1 versions the whm cpanel server works fine. The site must run with the original core magento2.2 files and to be full functional in frond and back end. The project will close only when the site runs properly and after magento developer confirmation Need server set up ( possible apache 2.4) with no down time. Also create daily back up script with server's files and set up to hetzner's store box in order to delete the older back ups and keep the last 3 back ups. The magento2.2 task need to be done in back up site first and then to main site Full written instructions need for above tasks. Report what changes or updates done in order to apply them to other magento 2.2 sites in the same server.