Stacktrace when warning an offline player

Note: I'm assuming this stacktrace occurs because the player in question is offline, but it might be for other reasons (such as the fact that that SmartWarnings_PlayerData contains two different players with the same name, albeit different Steam IDs)

Also of note, the player's entry in the PlayerData file seems to indicate that the warning was already acknowledged, which is odd and should not be true.

The following data was copied directly from the console, after entering the shown command in the console:

06/11 01:08:38 | >>> WARN 7656************* slur
06/11 01:08:38 | [Better Chat Mute] bill was muted by Server Console for 1 day(s): SmartWarnings AutoMod: Slurs are not permitted on this server.
06/11 01:08:38 | Player not found
06/11 01:08:38 | [SmartWarnings] [cmdWarnGUI] An unexpected error occurred server_console executed command warn
args:7656************* slur

System.NullReferenceException: Object reference not set to an instance of an object
at Oxide.Game.Rust.Libraries.Player.Position (BasePlayer player) [0x00000] in <ddc95321109547ab8f8488c04c21320a>:0
at Oxide.Game.Rust.Libraries.Covalence.RustPlayer.Position () [0x00000] in <ddc95321109547ab8f8488c04c21320a>:0
at Oxide.Plugins.SmartWarnings.UseChat (Oxide.Core.Libraries.Covalence.IPlayer player, System.Int32 warnId, System.String reason, System.String warndate, System.String warnedby) [0x00022] in <3cf5f2b8639f40369303cb8251d1ae8c>:0
at Oxide.Plugins.SmartWarnings.WarnPlayer (Oxide.Core.Libraries.Covalence.IPlayer targetPlayer, Oxide.Core.Libraries.Covalence.IPlayer adminPlayer, System.String preset) [0x007b6] in <3cf5f2b8639f40369303cb8251d1ae8c>:0
at Oxide.Plugins.SmartWarnings.cmdWarnGUI (Oxide.Core.Libraries.Covalence.IPlayer player, System.String cmd, System.String[] args) [0x00451] in <3cf5f2b8639f40369303cb8251d1ae8c>:0

SmartWarnings.json

Changed Status from Pending to Work in Progress

Thanks for reporting this, I will see if its reproducible based on provided details and come back.