random location error

[07:08:09] [Server thread/WARN]: [RandomLocation] Task #71 for RandomLocation v4.53 generated an exception
java.lang.NoClassDefFoundError: com/massivecraft/factions/entity/BoardColls
	at me.xADudex.RandomLocation.Zone.checkChunk(Zone.java:231) ~[?:?]
	at me.xADudex.RandomLocation.Zone.loadLocation(Zone.java:161) ~[?:?]
	at me.xADudex.RandomLocation.Zone.teleport(Zone.java:264) ~[?:?]
	at me.xADudex.RandomLocation.ZoneManager.teleport(ZoneManager.java:171) ~[?:?]
	at me.xADudex.RandomLocation.ZoneManager.teleportPlayer(ZoneManager.java:139) ~[?:?]
	at me.xADudex.RandomLocation.PortalManager$1.run(PortalManager.java:29) ~[?:?]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:58) ~[spigot.jar:git-Spigot-1228]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [spigot.jar:git-Spigot-1228]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:583) [spigot.jar:git-Spigot-1228]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot.jar:git-Spigot-1228]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:540) [spigot.jar:git-Spigot-1228]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [spigot.jar:git-Spigot-1228]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1228]