Is her return rejecting because you claimed yourself? She will have to print and mail her return this year.
You need to amend yours to not claim yourself. She doesn't have to wait for your Amended return to process.
How to amend a 2019 Online return
https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/00/27577
