Loaded the new update and here is the message I am getting>

Failed to run command '/bgrade' on plugin 'BGrade'. (FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.)
at System.Text.StringBuilder.AppendFormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x000ff] in <fb001e01371b4adca20013e0ac763896>:0
at System.String.FormatHelper (System.IFormatProvider provider, System.String format, System.ParamsArray args) [0x00023] in <fb001e01371b4adca20013e0ac763896>:0
at System.String.Format (System.String format, System.Object[] args) [0x00020] in <fb001e01371b4adca20013e0ac763896>:0
at Oxide.Plugins.BGradeExt.BGradeExtensions.Lang (System.String key, System.String id, System.Object[] args) [0x00011] in <97fe9e82d5d94f06a733517d7418c39d>:0
at Oxide.Plugins.BGrade.BGradeCommand (BasePlayer player, System.String command, System.String[] args) [0x001bd] in <97fe9e82d5d94f06a733517d7418c39d>:0
at Oxide.Game.Rust.Libraries.Command+ChatCommand.HandleCommand (BasePlayer sender, System.String name, System.String[] args) [0x0001b] in <fd97e7f10b844c0ca14512316ffe71a2>:0
at Oxide.Game.Rust.Libraries.Command.HandleChatCommand (BasePlayer sender, System.String name, System.String[] args) [0x00015] in <fd97e7f10b844c0ca14512316ffe71a2>:0
at Oxide.Game.Rust.RustCore.IOnPlayerCommand (BasePlayer basePlayer, System.String message) [0x000db] in <fd97e7f10b844c0ca14512316ffe71a2>:0