How long have you had her?
Give her a few days to settle in again and start with a regular schedule. You could feed her at a certain time and offer treats from your fingers. Otherwise, leave the treats and just watch her. Take it very slowly. When she feels confident enough, you can transport her into a play pen, bath tub or taming box and just work on strengthening your bond and letting her play.
Some hamsters do have setbacks in taming, but it is never too late to salvage a bond.
Best of luck
