my game crashed when i was entering in my world and some time later while i was walking i am using 1.10.2 with the latest forge and llibrary 1.5.1
https://gist.github.com/jochuan/84af5805187743f2b07fda85741abab3

Not LLibrary

Could you provide the crash report for the other time it crashed? It's probably not an issue caused by LLibrary but seeing the other crash report would help decide that.