Removing old company login from Outlook app

Hello

I have an issue, I used to work for an org and halfway through they stopped allowing users access to use the outlook client app. So I could not remove my profile from my set up. Now I have left the org and started at another place, I am of course still unable to login to outlook client app, but it's still pointing me to my old orgs login.

I cannot seem to remove the old profile.