I'd like to add my voice to the frustration of this licence check error.
It caused me a lot of stress last night. I use an old simm less phone as a music player for an exercise class and this error appeared for the first time. To make matters worse I couldn't use the playlist I set up on a different music player app. Fortunately I had a backup.
Connecting to a WiFi connection did not help. Neither did uninstalling and reinstalling the unlocker. I found that removing the widget did address the issue.
It is really annoying when people who do the right thing (paying for software) a