Hi King_Dr0xzY 🙂
Unfortunately, all old Oculus accounts that weren't migrated by March 2024 have been deleted and with them all purchases made with that account.
Users got several warning mails about the deadline and also a mail with a link to restore their games on a new Meta account after their Oculus account was deleted.
If you can find this mail, you'll probably able to get the game back...... if not, you are most likely out of luck.🙁
You can talk to support via email, chat or WhatsApp HERE ...... but I don't believe they will tell you anything else.