Can anyone give me some potty training advice? My 3 year old has been potty trained for a year now…

Can anyone give me some potty training advice? My 3 year old has been potty trained for a year now and has had no issues whatsoever but recently she has been having accidents daily... both kinds...I’ve taken her to the doctors and it’s not an infection or anything medical. I’ve tried a sticker chart but nothing seems to be working any advice? I wanted to start teaching my boys but I don’t want to begin if my daughter is still having troubles.