I started a return on Turbotax online for sister on my computer but she completed it on hers using a different login. Now she cant netfile. Could that be the issue

i started the return for my sister on my computer under my login but she ended up completing it on her computer with her own new login. Now she is receiving an unspecified error while trying to netfile. Could the reason be because I have a return started for her under my account? If so, how do I delete it so she can complete her filing?