When players are inviting someone to their clan i get Failed to call hook in console.

Failed to call hook 'cmdChatClan' on plugin 'Clans v0.2.10' (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) [0x0004e] in <ce25c44e381447b093bbd1bfa3335434>:0
at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Message (System.String message, System.String prefix, System.Object[] args) [0x00000] in <ce25c44e381447b093bbd1bfa3335434>:0
at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Reply (System.String message, System.String prefix, System.Object[] args) [0x0000f] in <ce25c44e381447b093bbd1bfa3335434>:0
at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Reply (System.String message) [0x00008] in <ce25c44e381447b093bbd1bfa3335434>:0
at Oxide.Plugins.Clans+Clan.InvitePlayer (Oxide.Core.Libraries.Covalence.IPlayer inviter, Oxide.Core.Libraries.Covalence.IPlayer invitee) [0x0015c] in <1dc05109c0dc4a3a9dc7d740dc1435c2>:0
at Oxide.Plugins.Clans.InvitePlayer (Oxide.Core.Libraries.Covalence.IPlayer inviter, Oxide.Core.Libraries.Covalence.IPlayer invitee) [0x0006b] in <1dc05109c0dc4a3a9dc7d740dc1435c2>:0
at Oxide.Plugins.Clans.cmdChatClan (Oxide.Core.Libraries.Covalence.IPlayer player, System.String command, System.String[] args) [0x003ef] in <1dc05109c0dc4a3a9dc7d740dc1435c2>:0
at Oxide.Plugins.Clans.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x017c8] in <1dc05109c0dc4a3a9dc7d740dc1435c2>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <15f61ddda771464d8246ebdce8ff4811>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <15f61ddda771464d8246ebdce8ff4811>:0