Forum Discussion
Teams app
I found a similar error from someone else in Answers: https://answers.microsoft.com/en-us/msoffice/forum/msoffice_other-mso_mac-mso_o365b/unable-to-log-into-microsoft-teams-on-mac/18638f8c-8a5f-43ba-acde-501557cf2831
It looks like it's having to do with a password change. I'm not sure if you are seeing something similar or not?
Have you tried to log-into the web client? Here are instructions for doing that: https://support.office.com/en-us/article/sign-in-to-teams-ea4b1443-d11b-4791-8ae1-9977e7723055 I wonder if this is specific to your account or just the client you are using?
If those things do not work, I would suggest messaging the Answers team so they can help you to troubleshoot your specific issue. Here is someone else that is getting the same error as you and the agent has requested logs. I imagine they will ask you for the same: https://answers.microsoft.com/en-us/msteams/forum/all/microsoft-teams-were-sorry-weve-run-into-an-issue/75e1f85c-fa5f-4b15-bddd-df35b46a76ca