Entered License Key and still getting no license message

Hi, following the instructions at https://getkirby.com/docs/installation/license-code I’ve entered my license key into /site/config/config.php

The line looks like:

c::set(‘license’, ‘K2-PRO-XXXXX’);

where XXXX is my actual key. However, upon doing this I still am getting the “It seems you are running Kirby on a public server without a valid license!” panel.

Is there any additional step to perform in entering the license key?

Did you try to replace by ' ?
It must be c::set('license', 'K2-PRO-XXXXX');

Fixed the problem, I had edited a copy of the file instead of the actual site/config/config.php file. Mystery solved.