First, you need donwload a hack that was released and still work, if you downloaded a hack.dll you will must know how to inject in 2ª process of BlackShot.exe, learn here: https://www.mpgh.net/forum/showthread.php?t=1090197
But if you are using suspend method you need follow this steps: https://www.mpgh.net/forum/showthread.php?t=1069928