"Action is not allowed in requested scope" error in API

Hi,

My name is Simon and I'm a french IT manager.

I try to use Wrike API. I encounter no problem with some endpoints, e.g. Timelog endpoint. But when using the User endpoint, a have the following message : "Action is not allowed in requested scope"

My Wrike account is the owner account, and when using Wrike website I can see all the users.

I gess there is something with Wrike rights and scopes I don't know. Please help me with this point.

Regards,

Simon