Thank you for your purchase.
It was a compatibility problem, we have issued a new release: 1.1.2
Please update your plugin on your WordPress Plugins page, or it can be downloaded from My Account menu of webshoplogic.com
Please let us know if this has solved the problem.
You can activate your license on your development environment. When you go live, you can deactivate the license on your WordPress Plugins page of your dev site, then you can activate the license on your live site. You can also deactivate your license in My Account menu of webshoplogic.com