My website started showing Error 500 when upgraded to Php7.4. I checked Logged file and it was showing public_html/.htaccess: Invalid command 'SetEnv', perhaps misspelled or defined by a module not included in the server configuration Note: Errors can be seen from cPanel -> Errors Solution: 1. go to WHM -> EasyApache 4 -> Click on Customize Search for mod_env, also if mod_version not installed, installed it. This should solve the 500 error.