PLEASE HELP! Profiles duplicated so I lost an entire profile!

Anki makes you create different profiles, sometimes it asks to to download or upload profiles or something when you click on the other profile… seconds later I’m looking at two profiles duplicating each other losing the material inside of the second profile. Please help me recover my old profile, I’m begging you.

Please see the following pages

https://faqs.ankiweb.net/restoring-an-automatic-backup-recovering-from-data-loss.html

https://faqs.ankiweb.net/synchronizing-multiple-profiles.html