Login to OneDrive failed

We got an "access denied" error when login in to the MS Graph API:

1. {error: {code: "accessDenied", message: "There has been an error authenticating the request.",…}}
1. error: {code: "accessDenied", message: "There has been an error authenticating the request.",…}
1. code: "accessDenied"
2. innerError: {date: "2021-06-08T08:36:06", request-id: "7fa531ff-0688-46f6-adb2-32c278ee5312",…}
1. client-request-id: "175d7a08-080b-c24f-512c-d4930bf9bd47"
2. date: "2021-06-08T08:36:06"
3. request-id: "7fa531ff-0688-46f6-adb2-32c278ee5312"
3. message: "There has been an error authenticating the request."

We are trying to access to following URL:

https://graph.microsoft.com/v1.0/me/drive/root

The following permissions are configured on the app:

Does anyone have an idea what the issue could be?

Happy to provide more info if needed!

Thanks!