Authentication Error in Production Environment Setup

[ad201125]

Hi @anubhavmishra , I encountered an issue while setting up the production environment as per the instructions in the README. I have added all the required auth scopes and enabled domain-wide delegation for my Google Workspace. but when I am enabling the auth block I am unable to login to the UI.
When I am using ({hermes-service-user-name}@yourdomain.com) as subject and client email= {hermes-demo}@{project-id}.iam.gserviceaccount.com, then I am getting the following error:
2024-07-23T12:50:57.531+0530 [INFO] hermes: listening on 127.0.0.1:8000...
2024-07-23T12:51:52.557+0530 [ERROR] hermes: error validating Google access token:
error=
| Post "https://www.googleapis.com/oauth2/v2/tokeninfo?access_token=ya29.a0AXooCgsuLfZQQaS-Y5z099O2Sza8cM2jKLDxUPRH-vwj2P455cES8RvGDk5eaP-G0phDBAUYfuW-N2AEQJ0g-xY0iibu7_7kGxCWco9u3rg_IVC7IRPSlBjDyoAhLBDy75Wok4mXdc2d0o6wkRD7bke8CFxyiOUdZwaCgYKAfUSARMSFQHGX2MiwdggWoUpcSE6mHpq5-Mwhw0169&alt=json&fields=%2A&prettyPrint=false": oauth2: cannot fetch token: 401 Unauthorized
| Response: {
| "error": "unauthorized_client",
| "error_description": "Client is unauthorized to retrieve access tokens using this method, or client not authorized for any of the scopes requested."
| }
method=GET path=/api/v2/products

Could you provide any potential solutions to resolve this issue?