Pro version doesn't work

Dear community!

This post is an error report and workaround suggestion.

Some time ago I started to use this plugin on my site. A little while I wanted to buy PRO version. I’ve bought it and installed (like another plugin). Unfortunately it didn’t work. There were a few problems with it.

Apache2’s error log reports me that file includes/filters.php not found (required in line 12 of file ready-gird-gallery-one-site-licence/index.php). I open this file and changed line:
require_once 'includes/filters.php';
To this:
require_once dirname(__FILE__) . '/includes/filters.php';

It didn’t work. error_log stops report me about an error, but I still didn’t have ability to use PRO version of this module and in the main module settings I saw “GET PRO” red button.

I spent about 2 hours to find out the problem and I did it!

The problem was in a way that the developer use to provide PRO version and the way that WP loads the plugins. The thing is that WP loads plugins in alphabetical order. In the same time plugin ‘ready-gird-gallery-one-site-licence’ which allows to use PRO-features should be loads before the main ‘grid-gallery-ready’. So I rename directory plugins/ready-gird-gallery-one-site-licence to plugins/1ready-gird-gallery-one-site-licence then I activate Ready grid gallery pro plugin in admin console and the module started to work.

Hope the developer will fix this issue in future.

https://wordpress.org/plugins/grid-gallery-ready/