Based on the credentials sent, you can reproduce the error, which provides the following URL in the workspace:
Going to the URL in any browser returns the following:
{"error":"Forbidden","error_description":"These credentials do not authorize access. Please contact your customer representative or submit a request here https://developer.here.com/contact-us to upgrade your account. You can also get valid credentials by registering for a free trial license on https://developer.here.com."}
This is likely because the credentials you are using are not for the HERE HD Live Map (HDLM) service.
You can confirm this from the screenshot provided where it is stated that the credentials can only be used with other specific HERE products, not HERE HD Live Map.
You will likely need to reach out the HERE customer service to get the appropriate license for HDLM: