CorpseReborn Error Paste

Date: 06/21/2018 19:44:18
CorpseReborn Version: 2.12.1

Server Version: git-Spigot-3d850ec-809c399 (MC: 1.12.2)
Server Type: SPIGOT
Folder Version: v1_12_R1

Exception:
java.lang.NullPointerException
	at org.golde.bukkit.corpsereborn.nms.nmsclasses.NMSCorpses_v1_12_R1.removeCorpse(NMSCorpses_v1_12_R1.java:224)
	at org.golde.bukkit.corpsereborn.CorpseAPI.CorpseAPI.removeCorpse(CorpseAPI.java:158)
	at de.EmirplaysHD.Medic.SpawnLeiche.onCommand(SpawnLeiche.java:21)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:649)
	at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1397)
	at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1232)
	at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45)
	at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1)
	at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46)
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748)
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406)
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679)
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577)
	at java.lang.Thread.run(Unknown Source)


Plugins:
PermissionsEx - 1.23.4
Roleplay-Server - 1.0.0
WorldEdit - 6.1.8-SNAPSHOT;cd4729f
Chairs - 4.11
BuycraftX - 10.6.2
CorpseReborn - 2.12.1
SimpleSit - 1.6.3

Config:
enable-update-checker: true
corpse-time: 120
on-death: true
looting-inventory: true
despawn-after-looted: true
show-tags: true
world: all
gui-title: %corpse%'s Items
username-format: %corpse%
finish-looting-message: *bYou have finished looting %corpse%'s corpse.
new-hitboxes: true
render-armor: truesave-corpses: truesend-data: true

Corpses:
VERSION: v1_12_R1
amount-of-corpses: 0