POST /v1/payments.tevacod7ohfevacod7ohfPOST /v1/payments succeeds and returns status=READY together with a valid checkout.url.https://evacode.org, and it is a public HTTPS domain with a valid TLS certificate.checkout.url, it immediately redirects to failUrl with this error:code=COMMON_ERRORmessage=처리 중 오류가 발생했습니다evacod7ohf is fully activated for real payments and whether any production approval, card review, or payment-method activation is still missing for this MID?COMMON_ERROR at hosted checkout can be caused by merchant activation status, contract status, or payment-method configuration on the live MID.