I have no idea what to do if there are problems with the license or a black screen… I don’t know what could even cause a 'black screen.' What kind of argument is that anyway, and it’s probably a made-up problem… Anyone who has had this kind of problem should carefully check their WordPress installation, settings, etc., to see if there’s any conflict.
If a person follows the rules and doesn’t break anything, what reason would the WP-Script owners have to cancel a license? Where’s the logic in creating problems and losses for themselves?
It’s a different matter if someone buys a license and then tries to hack the script or otherwise do something that violates the rules—then there would be a reason to cancel the license. But otherwise, I have no idea what others are talking about. Maybe I just got lucky and everything is fine.
In any case, I only contacted them for the first time after several months of using the script, and it wasn’t because something wasn’t working.