CorpseReborn Error Paste

Date: 02/22/2018 19:41:17
CorpseReborn Version: 2.12.1

Server Version: git-Paper-1226 (MC: 1.12.2)
Server Type: PAPER_SPIGOT
Folder Version: v1_12_R1

Exception:
java.lang.NullPointerException: Name is null
	at java.lang.Enum.valueOf(Enum.java:236)
	at org.golde.bukkit.corpsereborn.ServerVersion.valueOf(ServerVersion.java:1)
	at org.golde.bukkit.corpsereborn.Main.onEnable(Main.java:148)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:316)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404)
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:386)
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:335)
	at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:442)
	at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:403)
	at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:341)
	at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:292)
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:616)
	at java.lang.Thread.run(Thread.java:748)


Plugins:
AnimationLib - 1.6.3
WorldEdit - 6.1.8-SNAPSHOT;cd4729f
Nicky - 0.6.8
AutoRestart - 2.10.3
RollbackCore - 2.2
PlayerReset - 1.7
PlaceholderAPI - 2.8.2
UltimateBossBar - 1.5.0
ViaVersion - 1.3.0
NametagEdit - 4.1.3
Vault - 1.5.6-b49
ViaBackwards - 2.3.1
BungeeTabListPlus - 2.7.4
ProtocolLib - 4.4.0-SNAPSHOT-b389
WorldGuard - 6.2.1;84bc322
DeluxeChat - 1.12.3
AAC - 3.3.2
PowerfulPerms - 4.5.2
CorpseReborn - 2.12.1
SurvivalGames - 6.2

Config:
enable-update-checker: true
corpse-time: 120
on-death: true
looting-inventory: false
despawn-after-looted: false
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: