Press Windows + R , type %appdata%\Microsoft\Teams , and hit Enter.
While "mst2euvwp0891d" looks like gibberish, it’s just a sign that your local machine and the Microsoft server have stopped speaking the same language. In 90% of cases, or syncing your system clock will resolve the issue instantly. mst2euvwp0891d fixed
Windows stores your login info in the "Credential Manager." Sometimes these "stale" entries cause the error. Search for in the Start menu. Select Windows Credentials . Press Windows + R , type %appdata%\Microsoft\Teams ,