HELP ASAP PermissionsEx Error

Hi, i own a 100 person server and ive stumbled across a major error i cant fix :/

Code:

2012-03-11 02:18:45 [SEVERE] java.lang.RuntimeException: Permissions manager is not accessable. Is the PermissionsEx plugin enabled?
2012-03-11 02:18:45 [SEVERE]    at ru.tehkode.permissions.bukkit.PermissionsEx.getPermissionManager(PermissionsEx.java:148)
2012-03-11 02:18:45 [SEVERE]    at ru.tehkode.permissions.bukkit.PermissionsEx.getUser(PermissionsEx.java:155)
2012-03-11 02:18:45 [SEVERE]    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.performCheck(PermissiblePEX.java:124)
2012-03-11 02:18:45 [SEVERE]    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.checkPermission(PermissiblePEX.java:110)
2012-03-11 02:18:45 [SEVERE]    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.hasPermission(PermissiblePEX.java:102)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.craftbukkit.entity.CraftHumanEntity.hasPermission(CraftHumanEntity.java:99)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.broadcast(CraftServer.java:950)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.broadcastMessage(CraftServer.java:322)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.Bukkit.broadcastMessage(Bukkit.java:114)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.command.defaults.SayCommand.execute(SayCommand.java:37)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:461)
2012-03-11 02:18:45 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:457)
2012-03-11 02:18:45 [SEVERE]    at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:599)
2012-03-11 02:18:45 [SEVERE]    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:568)
2012-03-11 02:18:45 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
2012-03-11 02:18:45 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
2012-03-11 02:18:45 [WARNING] Unexpected exception while parsing console command
org.bukkit.command.CommandException: Unhandled exception executing 'say s' in org.bukkit.command.defaults.SayCommand@59e91c40
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:170)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:461)
    at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:457)
    at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:599)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:568)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.RuntimeException: Permissions manager is not accessable. Is the PermissionsEx plugin enabled?
    at ru.tehkode.permissions.bukkit.PermissionsEx.getPermissionManager(PermissionsEx.java:148)
    at ru.tehkode.permissions.bukkit.PermissionsEx.getUser(PermissionsEx.java:155)
    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.isPermissionSet(PermissiblePEX.java:202)
    at org.bukkit.permissions.PermissibleBase.hasPermission(PermissibleBase.java:71)
    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.checkPermission(PermissiblePEX.java:113)
    at ru.tehkode.permissions.bukkit.superperms.PermissiblePEX.hasPermission(PermissiblePEX.java:102)
    at org.bukkit.craftbukkit.entity.CraftHumanEntity.hasPermission(CraftHumanEntity.java:99)
    at org.bukkit.craftbukkit.CraftServer.broadcast(CraftServer.java:950)
    at org.bukkit.craftbukkit.CraftServer.broadcastMessage(CraftServer.java:322)
    at org.bukkit.Bukkit.broadcastMessage(Bukkit.java:114)
    at org.bukkit.command.defaults.SayCommand.execute(SayCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)
    ... 6 more

PLEASE I WOULD EVEN PAY YOU A DOLLAR TO FIX