Same issue here…
It was working fine a while ago.
Developer: Is there any info you need from us that might help you find the solution?
In my case, I’m running Version 1.3.9 of your plugin along with WordPress 4.4.2.
Also, made sure that the plugin folder had the necessary rights to read, write and even modify, but no dice.
Also, if it would be possible that you could tell me how to completely clean any reference to the plugin in my project’s database, so that I can perform a thorough and complete re-install. I need the string parameter value to search for in my SQL SELECT statement, so that I can completely clean my database of any reference to your plugin. That way I can securely and efficiently re-install it nice and clean.
Thank you for your time and effort.