I am receiving "500 Internal Server Error" when I try to access my WordPress.If you receive that error when trying to access your WordPress installation, follow these steps:
1. Check your WordPress files for permissions above 755. Our servers run in SuExec mode so the maximum allowed permissions are 755, all permissions above 755 will result in Internet Server Error. You can find which files exactly give the error from here:
cPanel --> Error log
After that, you can change the permissions from cPanel --> File Manager. Find the files with wrong permissions click on the name of the file, and on the top-right side of your screen you will see the menu for the file --> Click on the Change Permissions option and remove the writing permissions for 'Group' and 'World'.
2. Check your WordPress .htaccess file for bad directives. It is located in your WordPress installation directory.