i did /mail new then pressed N but not coming up getting this  (server tried to run command "in "cmdmail"" but we blocked it) can some one help please

Not getting anything here either.

18:15 [Info] Loaded plugin AbsolutMail v1.0.7 by Absolut
18:16 [Error] Failed to call hook 'chatMail' on plugin 'AbsolutMail v1.0.7' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.AbsolutMail.AllowedToBuild (BasePlayer player) [0x00000] in <0a318490d5e74a2bbacfe9b0c8a4bc04>:0
  at Oxide.Plugins.AbsolutMail.InitializeMailbox (BasePlayer player) [0x00064] in <0a318490d5e74a2bbacfe9b0c8a4bc04>:0
  at Oxide.Plugins.AbsolutMail.chatMail (BasePlayer player, System.String command, System.String[] args) [0x00072] in <0a318490d5e74a2bbacfe9b0c8a4bc04>:0
  at Oxide.Plugins.AbsolutMail.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00c6b] in <0a318490d5e74a2bbacfe9b0c8a4bc04>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0