Hello Quatrex!
Thank you for looking into this issue and providing a clear explanation as to what happened. Unfortunately, I don't remember every creature I've discovered in the dex but I do know I just unlocked gear level 6. I only had maybe 10k gold as I just spent 200K getting gear level 6. I had a level 35 marina snailfish+++, level 1 abyssal seeker, level 38 Abyssal Bloom+++, Level 35 Void Walker+++. I think I had about 40 rations, 6 crystals, and maybe 8 grand crystals. That's about all I remember.
Hopefully, that can help to restore my account but just curious if I will have to restart my Dex from scratch? Anyway, this is still my favorite game I've ever found on itch! It's understandable since it's early beta that mistakes would happen. I'm just glad I was able to understand why and maybe a glimmer of hope to get back to where I was. Thanks again for your help!