For you Aunt ...
Go to the "Vitals" Section ...
Go to the "Death" field ...
Change the 'Status' from "Deceased" (with a 'Date' and 'Place, if applicable) to "Living".
That should change the 'Status' of that individual/person from "Deceased" to "Living"; and, should also place that individual/person into the "Private Spaces" of the User/Patron who "Created" her (ie. Your Aunt).
The "Change" may be DELAYED while 'FamilySearch' investigate; but, it does not take too long ... you will get a 'Message' indicating such if such is the case.
Here is a "knowledge Article" in 'FamilySearch':
How do I change a status from living to deceased in Family Tree?
I hope this helps.
ps: Just double check that it is your Aunt and not someone with the same/similar name for the same/similar locale.