Ok, I have a problem. My Java crashes and because this crashes there is rollback and etc. This is the crash log: http://pastebin.com/1k9jjDEW I really don't know where is the problem. Is it plugin problem? Ok, now it crashed with new error: However, I think I found the problem. I checked my RAM with Memtest86 and ... above 65000 errors. EDIT by Moderator: merged posts, please use the edit button instead of double posting.