Not sure if this is an issue with Preciousstones or Zpermissions, but I'd like to know what's going on. It starts out fine, but after running for hours, it starts doing this and preciousstones stops working

03:37:47 [SEVERE] Could not pass event PlayerMoveEvent to PreciousStones
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:303)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:441)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:212)
at net.minecraft.server.Packet10Flying.handle(SourceFile:126)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:229)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:116)
at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:169)
at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:554)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.UnsupportedOperationException: SuperPerms no group permissions.
at net.milkbowl.vault.permission.plugins.Permission_SuperPerms.getPlayerGroups(Permission_SuperPerms.java:91)
at net.milkbowl.vault.permission.Permission.getPlayerGroups(Permission.java:513)
at net.sacredlabyrinth.Phaed.PreciousStones.managers.PermissionsManager.getGroups(PermissionsManager.java:219)
at net.sacredlabyrinth.Phaed.PreciousStones.vectors.Field.isAllowed(Field.java:439)
at net.sacredlabyrinth.Phaed.PreciousStones.managers.ForceFieldManager.isAllowed(ForceFieldManager.java:1167)
at net.sacredlabyrinth.Phaed.PreciousStones.managers.ForceFieldManager.isApplyToAllowed(ForceFieldManager.java:1118)
at net.sacredlabyrinth.Phaed.PreciousStones.managers.EntryManager.enterOverlappedArea(EntryManager.java:269)
at net.sacredlabyrinth.Phaed.PreciousStones.listeners.PSPlayerListener.handlePlayerMove(PSPlayerListener.java:822)
at net.sacredlabyrinth.Phaed.PreciousStones.listeners.PSPlayerListener.onPlayerMove(PSPlayerListener.java:719)
at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301)
... 11 more

Its cause zpermissions doesnt have groups support. http://dev.bukkit.org/server-mods/zpermissions/pages/for-plugin-developers/

I'm adding a try catch so it doesn't kill the server when it fails