I downloaded Multiclicker 2 and when I start it, it shows a plug-in error. I can't fix this problem. Can you let me know how I can solve this problem?
The only thing I can recommend is updating the software to the latest version, then use the forum to post about its errors. Official developers have created a page where users can register to post problems with the software as well as to get information about plugins.
Download latest version: http://www.multiclicker2.org/