Newbie -Installation query error

Your software
*My PHP version is 7.4
*My MySQL/MariaDB version is MySQL/MariaDB version 10 i think

Updating/Installing Errors
*I am Installing
installing via : Web -control panel /Filemanager

These errors are showing in the installer :

Hello I’m trying to install Mautic to one of my setup subdomains but I am getting this error message .
“Composer detected issues in your platform: Your Composer dependencies require a PHP version “>= 7.4.0”

I tried to set the PHP to Version 7.4.0 on control panel but im still getting the error message

Can you assist me please on how to fix this

Thomas Craig Galloway

Your problem
My problem is :

Steps I have tried to fix the problem :