Re-opening a closed Trello board

[Lia Nst]

I have a recently closed trello board, my wife's the one creating the board. I have tried both my wife's email (I think both created on pre-Atlassian account), but both listed as new accounts and don't have the said board. Is it possible for me to know which email is created a board while I'm only a regular member to a board (not admin.) Thank you.

https://trello.com/b/8FP0AMkO