Try standing flat on your feet. Sometimes working on the balls of your feet can create tension so on-the-toes postures might not work for you. Modify by taking a posture that can be done with flat feet, like Sumo Squats or Incline Chair.

Postures that involved standing on one leg, like Standing Seat Work, can be tough on the standing foot or ankle. If you are feeling discomfort, try holding onto a chair, or modify to All Fours.

If you feel like you need more support when working out barefoot try wearing support footwear for barre workouts, like Toesoxs, or even lightweight tennis shoes if you are doing the online workouts.

Try taking a tennis ball and gently rolling out the bottom of your feet and see if that helps.