The website Domain name suddenly stopped redirecting to the subfolder where the WordPress files were.
Helpdesk narrowed it down to a single line in .htaccess
was caused by this line in the .htaccess file located in the public_html/ directory of the cPanel account.
RewriteOptions inherit – Remarking this line to test if its at fault
then try using the domain URL again – refresh the browser – hopefully you will now be forwarded to the subfolder.