I still do not know what causes this, but i believe that a bug or glitch if you will, has occurred with an item in your inventory. As i stated before this is just an idea, not an absolute cause. The only "fix" that i know of is you have to start a new tekkit server. I do not have the newest update for tekkit because the server admin does not want to install it, so i do not know if that has anything to do with it or not. But it shouldn't be a problem with your computer because when the server admin started a new server i haven't had a problem since, other than the occasional crash whenever i join the server, but the admin has that same issue to with the crash, but we just restart tekkit and were fine. Sorry if i repeated some things from other people. I hope you guys can find a solution whether you can fix this problem or a new server, but always run when you hear that fuse go off and happy crafting!
