Hi, 
i'm getting this error with the current version of Oxide.

Many Thanks

(16:41:05) | Failed to call hook 'SignCommand' on plugin 'SignBan v1.0.1' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Game.Rust.Libraries.Player.Message (BasePlayer player, System.String message, System.String prefix, System.UInt64 userId, System.Object[] args) [0x00038] in <d0deb77121b047e88dcefd1bbc619e37>:0 
  at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Message (System.String message, System.String prefix, System.Object[] args) [0x00000] in <d0deb77121b047e88dcefd1bbc619e37>:0 
  at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Reply (System.String message, System.String prefix, System.Object[] args) [0x0000f] in <d0deb77121b047e88dcefd1bbc619e37>:0 
  at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Reply (System.String message) [0x00008] in <d0deb77121b047e88dcefd1bbc619e37>:0 
  at Oxide.Plugins.SignBan.SendChatMessage (Oxide.Core.Libraries.Covalence.IPlayer player, System.String message) [0x00000] in <c751a88849214727983fd2c369d0efd4>:0 
  at Oxide.Plugins.SignBan.SignCommand (Oxide.Core.Libraries.Covalence.IPlayer player, System.String command, System.String[] args) [0x001a5] in <c751a88849214727983fd2c369d0efd4>:0 
  at Oxide.Plugins.SignBan.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00071] in <c751a88849214727983fd2c369d0efd4>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <008b12f41ec4452da1a5497eeb849299>:0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ac41dd3599754d448b8c218b34645820>:0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ac41dd3599754d448b8c218b34645820>:0