Do you try to sign in with the same account in different machine?
Does anybody else have the same issue?
Could you provide a screenshot about detailed error message?
Please do a Windows Update if there is any information about it in your machine.
Try to log in Teams web client(https://teams.microsoft.com). If it has no problem to sign in Teams web client, it must be related to the desktop client. You could delete the Windows credential about Teams account. Then, sign in again.
In addition, please try to do a clean boot to determine if it is the conflict between third-party applications.
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