You Played Better, but it was Sloppy

I’ve gotten this advice from the chess.com coach pertaining to a specific phase of the game more than once, but don’t understand what it means. I got this pertaining to the opening of my last game review.

My Bot opponent played a 1)…response and it immediately took me out of my opening knowledge. I do have a plan to address this knowledge/ skill gap; I’ve heard that Stockfish will sometimes label a move as an inaccuracy in the opening and that I should just ignore it- so that advice will have to do until I develop/ improve my opening repertoire. 

For now I’d be happy to know what “sloppy” means and how the software determines that.

FWIW, I did win the game and my target accuracy was only missed by 0.1%