Plus emu R2 Groups (Packet error)

When i try create a group i get this packet error, how can i do to fix it? :)

Error in packet [2240] BODY: :
System.NullReferenceException: Object reference not set to an instance of an object.
at Silverwave.Messages.GameClientMessageHandler.SerializeGroupFurniPage() in c:\Users\Robin\Desktop\Silverwave Emulator\Messages\Requests\Groups.cs:line 692
at Silverwave.Messages.StaticMessageHandlers.SharedPacketLib.SerializeGroupFurniPage(GameClientMessageHandler handler) in c:\Users\Robin\Desktop\Silverwave Emulator\Messages\StaticMessageHandlers\SharedPacketLib.cs:line 993
at Silverwave.Messages.StaticMessageHandlers.StaticClientMessageHandler.HandlePacket(GameClientMessageHandler handler, ClientMessage message) in c:\Users\Robin\Desktop\Silverwave Emulator\Messages\StaticMessageHandlers\StaticClientMessageHandler.cs:line 30
at Silverwave.Messages.GameClientMessageHandler.HandleRequest(ClientMessage request) in c:\Users\Robin\Desktop\Silverwave Emulator\Messages\GameClientMessageHander.cs:line 43
at Silverwave.HabboHotel.GameClients.GameClient.parser_onNewPacket(ClientMessage Message) in c:\Users\Robin\Desktop\Silverwave Emulator\HabboHotel\GameClients\GameClient.cs:line 82

Regards