Remiyashirou

I am playing a custom pack that i threw together including electroblob's and some addons. a spell from the arcane essentials addon keeps crashing after trying to cast it giving the following crash message: The game crashed whilst ticking player Error: java.lang.IllegalArgumentException: Unregistered serializer com.favouritedragon.arcaneessentials.common.entity.data.Behaviour$BehaviorSerializer@302151cc for 7! mod list pastebin link any help would be greatly appreciated