Hanbada

Logged into an account for the first time in around five years on the silver server, from a quick look kept everything aside from badges and key items. Went into the gold server to see if it was the same but it was normal, help would be much appreciated.

The only pokedex information i have is from pokemons i catched

And i have no key items

It's been quite a while since i opened my game, but when i entered the silver server i noted that the game is treating me as if i'm starting from the beginning with the same NPC dialogue and no badges but the catch is that i have my old pokemons that are above lvl 90 and all my items and pokedex information. I'm quite confused by this can someone enlighten me about what is happening?