Character Gone.

Im a really old player on this server, and when i say old i mean MoltenWoW old. After the great wipe, back in 2015 i think, i created a character called Narivia (and a few others) on Deathwing server WOTLK. I geared it up and stuff but i stopped playing at some point. Came back a few years ago to play with friends and we just jumped on the Icecrown server so we all play fresh. A few days ago i realized that the server my old characters were on is gone and i dont know where. I still have the old game folder and in the WTF/Account there is my account with the server folder that has the old characters name. I even have some old logs from spending points and coins on the site back in 2015. I was wondering what happen? Are my characters deleted again without me even knowing? Is there any chance to get them (or at least one) back?

I read that the server merged into Lorderon, but i only have a random character there i created ramdomly and not the one im talking about.

I am the only one who uses this account and i have no history of it being hacked or logged into. I get emails whenever someone tries to log in, so i dont think someone stole it.

Thank you all in advance. Hope you have a great day.

I will add that i had 2 accounts back in the day. The other account still has the old character on it with everything i collected.