[SEVERE] Could not pass event PLAYER_QUIT to PermissionsEx
java.lang.RuntimeException: Permissions manager is not accessable. Is the PermissionsEx plugin enabled?
        at ru.tehkode.permissions.bukkit.PermissionsEx.getPermissionManager(PermissionsEx.java:152)
        at ru.tehkode.permissions.bukkit.PermissionsEx$PlayerEventsListener.onPlayerQuit(PermissionsEx.java:212)
        at org.bukkit.plugin.java.JavaPluginLoader$2.execute(JavaPluginLoader.java:272)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
        at net.minecraft.server.ServerConfigurationManager.disconnect(ServerConfigurationManager.java:161)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:651)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:231)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:93)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)