Payment API is not giving a response?

Hi,

I was trying to retrieve data using SAP S/4 Hana Cloud Services. While doing so, i was using the API-/PaymentReleaseListHeaderSet. Link- https://api.sap.com/api/API_CN_PAYMENTRELEASELIST_APPR_SRV/resource?tag=Payment%20Header&path=get_PaymentReleaseListHeaderSet&method=get&opId=get_PaymentReleaseListHeaderSet

The response i got is put below. I will need to retrieve information from the below API. Could you please tell what might have gone wrong? Can it be fixed? If not,please suggest any alternate API that can give the information. Thanks.