PPV or she sent you after you tipped? bc ppv purchases stay saved, but they can delete the message from the dms.
Go to your dms, find the account that you purchased from and at the top there will be "Gallery", "Purchases" and "Find", purchases only show up after you buy a PPV.
In your main feed you can click on "purchased" to see every ppv you ever bought as well, it includes the ones from accounts that got deleted.
If it was a ppv and it was not in the purchased tab, maybe it means OF deleted probably bc of ToS, in that case you should talk with support.