Deactivation error

Hi,
I tried to deactivate my Trados Studio 2021 license on my old computer and the pop-up error window indicates in French:
"La désactivation a échoué. Impossible de se connecter au serveur d'activation. Vérifiez l'adresse du serveur d'activation dans les paramètres du fournisseur. - Le serveur distant a retourné une erreur : (403) Interdit."
"Deactivation failed. Unable to connect to the activation server. Check the activation server address in the provider settings. - The remote server returned an error: (403) Forbidden."
I would not like to make any wrong moves resetting the license or anything on the oos.sdl.com platform.
I hope you can help me with this issue.
Looking forward to hearing back from you.
Kind regards,
Carolina Chiappe
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