Is this an error or a clean play?

Ill set the scene. In my videogame, i was playing Cleveland Indians vs. Texas Rangers. There is one out in the inning and runners on 1st and 3rd. Someone on Texas hit a pop up to the shortstop. Both runners were obviously holding on the pop up. The shortstop misplayed the ball and dropped it, but then threw to 2nd easily, and the runner on 3rd did not advance. The runner who was on 1st got out on the fielders choice. The shortstop was charged with an error. Is that an error or a clean fielders choice.