For a regurge do not feed again for three weeks. In the meantime get some Nutribac from either Amazon or The Bean Farm. It's a reptile probiotic.
When you do feed again, offer a feeder half the size of what she had been eating (so, a rat pup). Since she eats f/t offer the feeder damp and dust a bit of the Nutribac on the damp rat; it will stick nicely.
Wait two weeks and again offer a damp f/t rat pup dusted with Nutribac if all goes well.
Wait another two weeks and offer a damp f/t wean rat dusted with Nutribac.
If everything is ok after all this, I'd offer another weanling at 10 days and then again on a 7 day schedule for a few weeks before putting her back on the small rats.