I extended a wikitree account invitation to my mother, so that she can add her DNA tests to wikitree (since I cannot do so on her behalf, tho I manage them). However, she gets the following Account Creation Error message: "Someone has already added the email address xxx for a family member or trusted friend. " This is the only email address she has, and it was a shared email account with my father, who passed away recently. Since he is reflected on Wikitree as not living, there is no email field to edit on his profile now, so if I had put his email there when his profile was created, I can no longer access it. How do I resolve this, so that my mother can register for an account, so that she can post her DNA test info?