We officially released Skylords Reborn back in December 2020. At this point there was the long awaited reset of all accounts to keep the game fair to everyone. In the past (before the release) there have been bugs where players could get more Gold and BFP and also cards like players could get now.
Unfortunately there's nothing we can do for you in this case. Every player had to start from scratch. But be sure, it makes a lot of fun.