Issue with integration of Teams in Outlook 2013

Hi All,

Outlook 2013 standard edition works fine

Teams works fine too

I can see the "Teams" button in the outlook calendar, the probem is that when I click on it I'm always confronted to the error message "Sorry, you need to sign out of team and sign in again before you can Schedule your meeting. If the problem persist, please contact your support team."

I've tried already a lot of things:

Delete OST and create new outlook profile

Clean Teams cache

Unistall/Install Teams and Office again

repair Office

Remove add-in/ add add-in

What could you suggest me to go ahead?

Thank you very much for the help

Best regards,

Vincent