my account was hacked

My Pokémon Go game account was hacked, I was told to join my club, and I was told to link you to the Pokémon Training Center, then I told you to sign out and sign in, then you would join the club when you signed out, and then you were told to log in after that. Avoid any game ID sales fraud. If that Eid is linked with your Gmail, Facebook or any other app, then avoid it, this fraud happened to me in WhatsApp.