Tenant is restricted: other

[R. Angel]

I am connecting to Confluence via Oauth 3LO with the python module 

Confluence.

On my old confluence site I had no issues authenticating.

I changed to a new site and now I receive a requests.exceptions HTTPError: Tenant is restricted: other when the function get_all_spaces is triggered.

My user is admin of the Confluence Site and I should have all permissions.

Does someone know what could be the issue ?

Thanks in advance!