[20:42:29] [Server thread/INFO] [Villager Tweaks]: Zombie [21071] being cured in: [1 -> 0]
[20:42:29] [Server thread/INFO] [Villager Tweaks]: Oh baby, this zombie is about to be cured! EntityZombie['Custom'/21071, l='world', x=-402,04, y=62,00, z=218,68] in tick 20935
[20:42:29] [Server thread/INFO] [Villager Tweaks]: ServerInfoTracker > Tracking a new event of type [ZOMBIE] - [Entity ID = 21071, Position = BlockPos{x=-403, y=62, z=218}, Tick of Birth = 0, Custom Name = Custom, Extra Info = sidben.villagertweaks.common.ExtendedVillagerZombie:sidben.villagertweaks.common.ExtendedVillagerZombie@75755762]
[20:42:29] [Server thread/INFO] [Villager Tweaks]: A villager joined world: [EntityVillager['Villager'/22656, l='world', x=-402,04, y=62,00, z=218,68]]
[20:42:29] [Server thread/INFO] [Villager Tweaks]:     ID: [22656], Profession: [2]
[20:42:29] [Server thread/INFO] [Villager Tweaks]: ServerInfoTracker > Seeking one event of type [ZOMBIE] at [BlockPos{x=-403, y=62, z=218}]
[20:42:29] [Server thread/INFO] [Villager Tweaks]: ServerInfoTracker > found a valid target [Entity ID = 21071, Position = BlockPos{x=-403, y=62, z=218}, Tick of Birth = 20935, Custom Name = Custom, Extra Info = sidben.villagertweaks.common.ExtendedVillagerZombie:sidben.villagertweaks.common.ExtendedVillagerZombie@75755762]
[20:42:29] [Server thread/INFO] [Villager Tweaks]:     Found info on the tracker, must copy to villager
[20:42:29] [Server thread/ERROR] [FML]: Exception caught during firing event net.minecraftforge.event.entity.EntityJoinWorldEvent@1101195:
java.lang.NullPointerException
    at sidben.villagertweaks.tracker.ServerInfoTracker.endedCuringZombie(ServerInfoTracker.java:173) ~[ServerInfoTracker.class:?]
    at sidben.villagertweaks.handler.EntityEventHandler.onEntityJoinWorld(EntityEventHandler.java:238) ~[EntityEventHandler.class:?]
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_11_EntityEventHandler_onEntityJoinWorld_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?]
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:55) ~[ASMEventHandler.class:?]
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:138) [EventBus.class:?]
    at net.minecraft.world.World.spawnEntityInWorld(World.java:1127) [World.class:?]
    at net.minecraft.entity.monster.EntityZombie.convertToVillager(EntityZombie.java:623) [EntityZombie.class:?]