[20:31:44 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'list' in plugin CraftanijaSurvival v1.18(TEST1.2)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.18.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[paper-api-1.18.1-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.craftbukkit.v1_18_R1.CraftServer.dispatchCommand(CraftServer.java:907) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2289) ~[?:?]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2100) ~[?:?]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:2081) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundChatPacket.a(ServerboundChatPacket.java:6) ~[?:?]
	at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:56) ~[?:?]
	at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:149) ~[?:?]
	at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[?:?]
	at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1413) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.server.MinecraftServer.c(MinecraftServer.java:189) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[?:?]
	at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1391) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1384) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:132) ~[?:?]
	at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1362) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1268) ~[paper-1.18.1.jar:git-Paper-198]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:317) ~[paper-1.18.1.jar:git-Paper-198]
	at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonObject.isJsonNull()" because "obj" is null
	at tk.leopoldhauptman.craftanija.functions.playerData.PlayerHead.nameToUUID(PlayerHead.java:64) ~[craftanija.jar:?]
	at tk.leopoldhauptman.craftanija.functions.playerData.PlayerHead.getHead(PlayerHead.java:41) ~[craftanija.jar:?]
	at tk.leopoldhauptman.craftanija.functions.playerData.PlayerHead.getPlayerHead(PlayerHead.java:30) ~[craftanija.jar:?]
	at tk.leopoldhauptman.craftanija.commands.ListCommand.getPlayers(ListCommand.java:46) ~[craftanija.jar:?]
	at tk.leopoldhauptman.craftanija.commands.ListCommand.menu(ListCommand.java:35) ~[craftanija.jar:?]
	at tk.leopoldhauptman.craftanija.commands.ListCommand.onCommand(ListCommand.java:24) ~[craftanija.jar:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.18.1-R0.1-SNAPSHOT.jar:?]
	... 21 more