NutzCracker

I happen to get this pop up message after like 5 seconds after I started the instalation: An here is the log: Please help, main reason I'm doing this is because I keep getting this error when trying to enter most servers with Minecraft 1.8 and above: (this is not my printscreen) I've tried everything I would say, and can't find anything else on the Internet. Is it because I don't have premium minecraft and I'm using a cracked launcher? Maybe the server is for premium minecraft only?? Help please, and thank you all in advanced!