Hi @IBN
Here is a thread discussing this issue: URGENT My desktop app of Teams showing error code 80090016 but i am able to login through web app.
Please try the suggestions from James in this link and see if it works for you.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.