I initially thought this was a problem with Actually Additions auto-breaker; but it seems to be Overloaded. I can replicate this repeatedly.

Overloaded version: 0.0.17
Actually Additions version: 1.10.2-r105
Forge: 12.18.3.2297

Steps to replicate:

Create flat world

Drop AA auto-breaker.

Place birch planks in front of auto breaker.

Boom; crash. due to com.cjm721.overloaded.common.item.functional.ItemMultiTool

logs attached
crash-2017-05-22_11.53.52-server.txt
crash-2017-05-22_11.42.33-server.txt

Fixed by commit #2d1a2f3