I'm done. I'm deleting this plugin. Thanks for *awesome* assistance with my problem! I heard nothing but "reinstall", "update" and "send us your logs". It seems that only scriptkiddies are using this forum who can't say anything more clever but "reinstall", "update" and "send us your logs", and lick developer's ass, of course.
The developer, for sure, don't care about his plugin's users.
This is my opinion about this plugin and this plugin's (Shop) forum.
However, you can even ban me for this post. To be honest, I don't give any fuck.