Since the documentation was prepared, the program has changed. Therefore, we have a configuration problem (what data should be entered in each field and where to get it from). I would like to ask you to update the documentation
https://docs.ovh.com/pl/storage/zarzadzanie_object_storage_za_pomoca_oprogramowania_cyberduck/
I found the solution.
Right now parameters changed.
Instead of 'Tenant ID:Access Key:'
there is 'Project:Domain:Username:'
As a 'Project' you need to give 'Project Name' and not 'Project ID'.