HELP

Someone please help me. I had MFP ages ago, recently went back on and was saying Fitbit was already connected. I tried revoking access. I tried disconnecting. I tried everything and was getting Fitbit already connect to an account. In the end I deleted MFP and started again. Again revoked acces on Fitbit and disconnected but nope still won’t. When I click on disconnect in apps on MFP it then goes back to connected automatically. I am losing my mind. Please can anyone help?