Well, this seems to be happening on servers. As far as I can tell. But, about 10-15 Minutes of playing the game, it will crash. Now, I did put mods in the game, I know that's a factor of course. I installed Toomanyitems and the cape mod. A lot of people do 😛 But I'll include an error report.
MC-25975
Weird Problems
Resolved
Duplicate
0
I could not find any existing issue that contains any of the crashes mentioned here. However, all of the crash reports that you have provided are from a modded version of Minecraft. Please try to reproduce the crash in a vanilla (non-modded) version of Minecraft and attach that report or this may be dismissed as being caused by a mod. You can view all information known about this specific crash at MCX-917.