Contact their authors BEFORE contacting forge

// Sorry :(

Time: 7/12/17 6:11 PM
Description: Rendering entity in world

java.lang.ClassCastException: net.minecraft.item.ItemAir cannot be cast to org.silvercatcher.reforged.items.weapons.ItemBoomerang
crash-2017-07-12_18.11.04-client.txt

When a friend of mine uses boomerang the game closes :T