[12:04:55] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'bw' in plugin BedWars v0.2.19
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.17.1.jar:git-Paper-133]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.17.1.jar:git-Paper-133]
	at org.bukkit.craftbukkit.v1_17_R1.CraftServer.dispatchCommand(CraftServer.java:830) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleCommand(ServerGamePacketListenerImpl.java:2170) ~[?:?]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:1981) ~[?:?]
	at net.minecraft.server.network.ServerGamePacketListenerImpl.handleChat(ServerGamePacketListenerImpl.java:1962) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:46) ~[?:?]
	at net.minecraft.network.protocol.game.ServerboundChatPacket.handle(ServerboundChatPacket.java:6) ~[?:?]
	at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$1(PacketUtils.java:36) ~[?:?]
	at net.minecraft.server.TickTask.run(TickTask.java:18) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:149) ~[?:?]
	at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:23) ~[?:?]
	at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1348) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.server.MinecraftServer.shouldRun(MinecraftServer.java:190) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:122) ~[?:?]
	at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1327) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1320) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:132) ~[?:?]
	at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1281) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1192) ~[patched_1.17.1.jar:git-Paper-133]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:316) ~[patched_1.17.1.jar:git-Paper-133]
	at java.lang.Thread.run(Thread.java:831) [?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Map$Entry.getValue()" because "lastEntry" is null
	at org.screamingsandals.bedwars.Main.getGameWithHighestPlayers(Main.java:640) ~[?:?]
	at org.screamingsandals.bedwars.commands.JoinCommand.execute(JoinCommand.java:33) ~[?:?]
	at org.screamingsandals.bedwars.commands.BwCommandsExecutor.onCommand(BwCommandsExecutor.java:72) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.17.1.jar:git-Paper-133]
	... 21 more