Need help with a mod, Balkon's weapons mod 1.7.10

I have Forge version 10.13.0.1160 With Optifine, When I use Dynamite or a Warhammer, when the explosion is about to start, the game crashes, here is the report.
http://pastebin.com/3ZPHCT9L
It would be awesome if you could help me, im planning on doing a hardcore modded survival but I cant since it crashes with the explosions