The error ''The following errors were found : Required PHP extension not found : intl" was a website error shown when the frontend/backend was tried to load.

The error was due to Intl extension in your website PHP Selector not found due to not activated. To fix the error intl, you must activate the intl extension in PHP selector.
How to fix: “The following errors were found : Required PHP extension not found : intl”
To activate intl extension, do the following:
Log in to your website’s cpanel area.
Go to search and seach PHP version, and select it on the suggestion list.
On the PHP version page, switch to the tab Extension, and look for the Intl checkbox and tick it.
Once tick, save, and reload your website!
Your website should now load fine without Intl error! Follow me for more guide.❤