The resources that you can access are determined by the API key that you use in the request. When the request comes in, the API key is authenticated, then:
Finally, looking at all this information, the server determines whether or not the request is allowed. If not, it sends back error 4031.
First, are you really supposed to have access to this resource? If not, then you're done.
If you believe you should have access to this resource, then you should ask the project administrator to give you API key sufficient privileges to access this resource in the desired way.