Error on promoting

[AndrewX98]

Code: CurrentGame.MakeMove(new Move(pos1, pos2, CurrentGame.WhoseTurn, 'r'), true);

Error: An unhandled exception of type 'System.InvalidOperationException' occurred in ChessDotNet.dll: 'Source piece does not exist.'

It's sad that you stopped maintaining the library. The library is pretty good but needs some additional documentation Any help would be appreciated.