Need your help, pls

Failed to call hook 'CommandHome' on plugin 'NTeleportation v1.3.2' (InvalidCastException: Null object cannot be converted to a value type.)
  at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <437ba245d8404784b9fbab9b439ac908>:0
  at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <437ba245d8404784b9fbab9b439ac908>:0
  at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <ac41dd3599754d448b8c218b34645820>:0
  at Oxide.Plugins.NTeleportation.CheckPlayer (BasePlayer player, System.Boolean build, System.Boolean craft, System.Boolean origin, System.String mode) [0x0058b] in <3176de95a4874eb2ac3cd6668e6806a8>:0
  at Oxide.Plugins.NTeleportation.cmdChatHomeTP (BasePlayer player, System.String command, System.String[] args) [0x000d3] in <3176de95a4874eb2ac3cd6668e6806a8>:0
  at Oxide.Plugins.NTeleportation.CommandHome (Oxide.Core.Libraries.Covalence.IPlayer p, System.String command, System.String[] args) [0x0023f] in <3176de95a4874eb2ac3cd6668e6806a8>:0
  at Oxide.Plugins.NTeleportation.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x018d6] in <3176de95a4874eb2ac3cd6668e6806a8>: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