Yeah, that's just typical me. I always mess up something, this time it seems I don't even know what variable I'm using. Thanks for pointing that out - I already repaired it and uploaded the new version. Sorry for the issue.
I'm happy to hear you liked it nevertheless :)
About the bug report. I guess I should think about a good place for that... For now note on Twitter could work. Or a comment here I guess. I will try to figure out something else for the future.