When the flowering cycle has already started, it is not advisable to transplant your plants. But anyways, now we should just try to make the most of it! :)
1. If you can, try to dial back the light intensity. The root system is compromised, so it cannot deal with the evaporative demand that high light intensity brings. If your plant looks healthy & happy again, gradually increase the light intensity again. If you can't dim the light, try placing the light further away from the plant.
2. Don't give her too much water! A mistake I made with plants with transplant shock, was giving them too much love. Don't overwater her now! Let the soil dry out in between watering, and check if the top inch is dry, if not; wait!
Good luck with your grow and don't give up hope! 🙏