This just started about a week ago. A window opens before I play a song and when I close the song out. It says "Drum kit has no bass note assigned". I close that and a new one opens and says " …….no snare note assigned". I close that one and a new window opens and says …...no closed hi hat note assigned" and a final window that says ".....no open high hat note assigned" How do I fix this? I have never used any of this before and don't know what it is. 2020 version BIAB

Thanks Bill Mollenhauer