It is important to turn the eggs regularly, but if you missed a day, or a few turns, I don't think it would do much harm. Just make sure you turn them regularly now, until day 18/19 when you lock down. How far along are your eggs now?
Some years back---I placed my eggs in the turner----in the styrofoam incubator. On day 18 I went to candle and take the turner out----it was unplugged----being No One else is in my incubator room---I must have forgot to plug it in the day I set----I think I had 21 eggs in it and 7 still hatched---never being turned.