Base information

• Minecraft version:1.10.2
• Mod version:Draconic-Evolution-1.10.2-2.1.6.263-universal.jar
• Minecraft Forge version:12.18.3.2477
• Mod Pack: (if applicable) Sky Factory 3 (v1.15)

Some users were killing the end dragon and the server got stuck, ejected all the users for the "time out" reason and the console threw too much spam like the following:

java.lang.StackOverflowError at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_151] at java.lang.ClassLoader.checkPackageAccess(ClassLoader.java:500) ~[?:1.8.0_151] at net.minecraftforge.fml.common.eventhandler.EventBus.handleException(EventBus.java:199) ~[EventBus.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:643) ~[EventBus.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:588) ~[EventBus.class:?] at net.minecraftforge.common.ForgeHooks.onLivingAttack(ForgeHooks.java:498) ~[ForgeHooks.class:?] at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:980) ~[zs.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:543) ~[lu.class:?] at com.brandon3055.draconicevolution.handlers.CustomArmorHandler.onPlayerAttacked(CustomArmorHandler.java:131) ~[CustomArmorHandler.class:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_299_CustomArmorHandler_onPlayerAttacked_LivingAttackEvent.invoke(.dynamic) ~[?:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:632) ~[EventBus.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:588) ~[EventBus.class:?] at net.minecraftforge.common.ForgeHooks.onLivingAttack(ForgeHooks.java:498) ~[ForgeHooks.class:?] at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:980) ~[zs.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:543) ~[lu.class:?] at com.brandon3055.draconicevolution.handlers.CustomArmorHandler.onPlayerAttacked(CustomArmorHandler.java:131) ~[CustomArmorHandler.class:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_299_CustomArmorHandler_onPlayerAttacked_LivingAttackEvent.invoke(.dynamic) ~[?:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:632) ~[EventBus.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:588) ~[EventBus.class:?] at net.minecraftforge.common.ForgeHooks.onLivingAttack(ForgeHooks.java:498) ~[ForgeHooks.class:?] at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:980) ~[zs.class:?] at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:543) ~[lu.class:?] at com.brandon3055.draconicevolution.handlers.CustomArmorHandler.onPlayerAttacked(CustomArmorHandler.java:131) ~[CustomArmorHandler.class:?]

I had to kill the process to stop it since it did not respond
Here the complete log:
http://heberon.com/descargas/temporales/fml-server-2.zip