Citizens error "Get world permission" something. Please Help!

[globox44t]

18:33:46 [WARNING] Task of 'Citizens' generated an exception java.lang.NoSuchMethodError: com.platymuus.bukkit.permissions.PermissionInfo.getWorlds()Ljava/util/List; at net.milkbowl.vault.permission.plugins.Permission_PermissionsBukkit.getPlayerGroups(Permission_PermissionsBukkit.java:194) at net.milkbowl.vault.permission.Permission.getPlayerGroups(Permission.java:522) at net.citizensnpcs.permissions.PermissionManager.getGroups(PermissionManager.java:105) at net.citizensnpcs.guards.flags.FlagSorter$6.apply(FlagSorter.java:99) at net.citizensnpcs.guards.flags.FlagSorter$6.apply(FlagSorter.java:76) at com.google.common.collect.Iterators$7.computeNext(Iterators.java:645) at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:141) at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:136) at net.citizensnpcs.guards.flags.FlagSorter.getPossible(FlagSorter.java:142) at net.citizensnpcs.guards.flags.FlagList.process(FlagList.java:33) at net.citizensnpcs.guards.flags.FlagList.processEntities(FlagList.java:57) at net.citizensnpcs.guards.Targeter.findTarget(Targeter.java:14) at net.citizensnpcs.guards.types.Bouncer.findTarget(Bouncer.java:24) at net.citizensnpcs.guards.types.Bouncer.updateStatus(Bouncer.java:64) at net.citizensnpcs.guards.Guard.updateStatus(Guard.java:135) at net.citizensnpcs.guards.GuardTask.run(GuardTask.java:23) at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:517) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)