pcenero

Rather, it is Update Server that should have the functionality. The Update Server should check the Software License Manager license store BEFORE allowing updates.

@tralinespencer

See @rafay_mehfooz ‘s comment above:

I think easiest way would be to make WP_DEBUG false for now, in wp-config file of your site.

define('WP_DEBUG', false);
It worked for me to hide the error, hope works for you as well.

The wp-config.php file is located at the root of your WordPress installation. Simply add that line before the “That’s it! Stop editing!” comment.

If it already exists, change the false value into true