[Server thread/ERROR]: Befehl msg scheiterte:
java.lang.NoSuchMethodError: org.bukkit.command.SimpleCommandMap.getFallbackCommands()Ljava/util/Set;
at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:450) [Essentials.jar:?]
at com.earth2me.essentials.Essentials.onCommand(Essentials.java

72) [Essentials.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [minecraft_server.jar:git-Spigot-1322]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:175) [minecraft_server.jar:git-Spigot-1322]
at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:704) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:972) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:817) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:65) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [minecraft_server.jar:git-Spigot-1322]
at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [minecraft_server.jar:git-Spigot-1322]