Hey,

Game is crashing opening chest, vanilla and modded chests are crashing the game equaly!
If there is anything on Information that i could give you, yust Ask!

Minecraft 1.10.2
Forge 12.18.3.2185
Eleccore ElecCore-1.10.2-1.6.379
Crashlog: http://pastebin.com/VxX8HvGR

Greetings :)

Im sorry, but you are using 1.6.178:
-UCHIJAAAA eleccore{1.6.378} [ElecCore] (ElecCore-1.10.2-1.6.378.jar)

Please update to 1.6.179, which fixes this issue ;)