[11:54:00 INFO]: HiddenCloud issued server command: /fm spawn archer
[11:54:00 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'fm' in plugin FactionMobs v2.8.3.v1_8_R1.1.8-R0.1-SNAPSHOT
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:645) ~[Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_31]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_31]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
Caused by: java.lang.IncompatibleClassChangeError: Expected static method com.massivecraft.factions.Board.getFactionAt(Lcom/massivecraft/factions/FLocation;)Lcom/massivecraft/factions/Faction;
        at com.gmail.scyntrus.ifactions.Factions.getFactionAt(Factions.java:172) ~[?:?]
        at com.gmail.scyntrus.fmob.FmCommand.onCommand(FmCommand.java:148) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[Spigot_2015-01-18_fa7cbf9-59dd2dd.jar:git-Spigot-fa7cbf9-59dd2dd]
        ... 14 more