Below is the crash report, this began happening after placing down an auto hammer then later saving and quitting. Now when attempting to reload the world the error below happens.

Note: I have the auto hammer being fed by a standard hopper and powered by a coal furnace.

net.minecraft.crash.ReportedException: Ticking block entity
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:854) ~[?:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:786) ~[?:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:78) ~[?:?]
at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:641) [?:?]
at net.minecraft.server.MinecraftServer.lambda$startServer$0(MinecraftServer.java:232) [?:?]
at net.minecraft.server.MinecraftServer$$Lambda$26789/928988578.run(Unknown Source) [?:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]
Caused by: java.lang.NullPointerException
at net.blay09.mods.excompressum.client.ClientProxy.getRecipeManager(ClientProxy.java:126) ~[?:4.0.1]
at net.blay09.mods.excompressum.tile.AutoHammerTileEntity.isRegistered(AutoHammerTileEntity.java:391) ~[?:4.0.1]
at net.blay09.mods.excompressum.tile.AutoHammerTileEntity$2.isItemValid(AutoHammerTileEntity.java:66) ~[?:4.0.1]
at net.blay09.mods.excompressum.utils.DefaultItemHandler.insertItem(DefaultItemHandler.java:24) ~[?:4.0.1]
at net.blay09.mods.excompressum.utils.ItemHandlerAutomation.insertItem(ItemHandlerAutomation.java:34) ~[?:4.0.1]
at net.minecraftforge.items.VanillaInventoryCodeHooks.insertStack(VanillaInventoryCodeHooks.java:171) ~[?:?]
at net.minecraftforge.items.VanillaInventoryCodeHooks.putStackInInventoryAllSlots(VanillaInventoryCodeHooks.java:159) ~[?:?]
at net.minecraftforge.items.VanillaInventoryCodeHooks.lambda$insertHook$2(VanillaInventoryCodeHooks.java:138) ~[?:?]
at net.minecraftforge.items.VanillaInventoryCodeHooks$$Lambda$27846/1137464620.apply(Unknown Source) ~[?:?]
at java.util.Optional.map(Optional.java:215) ~[?:1.8.0_51]
at net.minecraftforge.items.VanillaInventoryCodeHooks.insertHook(VanillaInventoryCodeHooks.java:123) ~[?:?]
at net.minecraft.tileentity.HopperTileEntity.func_145883_k(HopperTileEntity.java:136) ~[?:?]
at net.minecraft.tileentity.HopperTileEntity.func_200109_a(HopperTileEntity.java:105) ~[?:?]
at net.minecraft.tileentity.HopperTileEntity.func_73660_a(HopperTileEntity.java:92) ~[?:?]
at net.minecraft.world.World.func_217391_K(World.java:491) ~[?:?]
at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:371) ~[?:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:850) ~[?:?]