Fix - Microsoft Teams Error Code - 80090016

Error Message:

We're sorry—we've run into an issue.

If that doesn't work, try signing out and back in.

desktop - 
Error code - 80090016

There's a more permanent way to sign in to Microsoft Teams.
 If you're having trouble completing the process, talk to your IT admin.

If you are using Microsoft Teams with a Business of School or Work account, and you see an error message 80090016, the reason for this error is mostly related to caching.

Ways to resolve 80090016 error

Step 1: Go to Start-> Menus -> Settings.

Step 2: Under Accounts got to Access work or school.

Step 3: Now disconnect the account that is having issues.

Step 4: Open Teams again and try to login.

If it does not work, follow these steps and try restarting your computer before login.

Facing issues? Have Questions? Post them here! I am happy to answer!