Using vCACCAFEEntitiesFinder.getCatalogItemRequest returns a message including a 404 at the end.
var request = vCACCAFEEntitiesFinder.getCatalogItemRequest(host, requestID);
If you are on an old vRO installation (e.g. before 7.3.1), there is a patch and this issue is fixed in 7.3.1 and 7.4.
Otherwise, this error indicates that the wrong requestId was passed.
in the payload there are mulitple requestIds.
These return the same request Id, but it is not the correct request ID to get the CatalogItemRequest: