To find what is causing the error 500/ internal server error / this page isn’t working, try the following
The issue could be related to htaccess file or some broken code in the program
Try adding this code to your index.php file, just after the opening php tag <?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);Now you should be able to see and get a hint what is causing the issue.
Note: Remove the added code after debugging to disable error display in a production environment.