Server crash

WARNING: coremods are present:
  SpongeCoremod (spongeforge-1.12.2-2705-7.1.0-BETA-3171.jar)
Contact their authors BEFORE contacting forge

// Don't be sad, have a hug! <3

Time: 6/16/18 7:17 AM
Description: Exception ticking world entities

java.lang.NullPointerException: Exception ticking world entities
	at net.minecraft.entity.player.EntityPlayer.func_96124_cp(EntityPlayer.java:2284)
	at net.minecraft.entity.player.EntityPlayer.func_145748_c_(EntityPlayer.java:2291)
	at com.pixelmonmod.pixelmon.storage.PlayerStorage.<init>(PlayerStorage.java:150)
	at com.pixelmonmod.pixelmon.storage.PokeballManager.loadPlayer(PokeballManager.java:216)
	at com.pixelmonmod.pixelmon.storage.PokeballManager.getPlayerStorage(PokeballManager.java:53)
	at com.pixelmonmod.pixelmon.listener.WorldEventListener.func_72709_b(WorldEventListener.java:40)
	at net.minecraft.world.World.func_72847_b(World.java:1226)
	at net.minecraft.world.WorldServer.func_72847_b(WorldServer.java:1128)
	at net.minecraft.world.World.func_72939_s(World.java:6553)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:2222)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
	at java.lang.Thread.run(Thread.java:748)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
	at net.minecraft.entity.player.EntityPlayer.func_96124_cp(EntityPlayer.java:2284)
	at net.minecraft.entity.player.EntityPlayer.func_145748_c_(EntityPlayer.java:2291)
	at com.pixelmonmod.pixelmon.storage.PlayerStorage.<init>(PlayerStorage.java:150)
	at com.pixelmonmod.pixelmon.storage.PokeballManager.loadPlayer(PokeballManager.java:216)
	at com.pixelmonmod.pixelmon.storage.PokeballManager.getPlayerStorage(PokeballManager.java:53)
	at com.pixelmonmod.pixelmon.listener.WorldEventListener.func_72709_b(WorldEventListener.java:40)
	at net.minecraft.world.World.func_72847_b(World.java:1226)
	at net.minecraft.world.WorldServer.func_72847_b(WorldServer.java:1128)
	at net.minecraft.world.World.func_72939_s(World.java:6553)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:2222)