Hey Herminatoriii,
It doesn't look like the EA account you're posting with currently has ever launched Apex on Xbox. If you played on Xbox previously, that would have been linked to another account at the time.
Progress is stored on the EA account level, not on individual platforms like PlayStation, Xbox, Steam, etc. This means you'd just need to figure out which EA account was originally linked to that Xbox and try signing back in there instead.
If you're not sure which account may have been used or no longer have access to it, you can try these steps to recover an old account or contact support at the bottom of the page if needed.