Plugin completely broken after upgrade/change of developers

I installed this plugin back when it was owned by Sandhills. I inadvertently upgraded it from the admin panel and now it’s broken. I needed to make some slight changes in the message to display to non-logged-in users and it won’t make any. It’s basically stuck. I tried deactivating it, hell, even deleting and re-installing it. My non-logged-user view is stuck on the same message. While completely deleted from my wordpress, the page was still restricted, still displaying the same old message!

This is disappointing and honestly quite worrying! My website should be free of the bugs generated by this plugin if I decide to uninstall/delete it! Now instead I feel I’m being bullied into buying the pro version to solve a problem on my site as other competing FREE plugins won’t work until this issue is fixed! Believe me, I tried!

This is not ok! Please get back at me as soon as you can!