Finished Set-Up And Cannot Login as SuperUser

Hello,

I’m currently using WHM, CPanel etc on a LAMP stack configuration for my web server, with a subdomain as place for my install.

I completed the set-up however i can now no longer login or gain access as a super user.

I get the following message -

I have searched the community for a solution however there is no clear instructions for apache or a traditional LAMP stack.

I have seen docker and Nginx solutions but nothing clear for apache and PHP.