카카오페이결제시 종료된 요청입니다

카카오페이 결제 준비 테스트를 진행 후
’종료된 요청입니다.'
메세지를 받는 경우가 생겨 문의드립니다.
https://kapi.kakao.com/v1/payment/ready 를 통해 리턴받은 정보는 아래와 같습니다.

["{“tid”:“T2933584528989204312”,“tms_result”:false,“next_redirect_app_url”:“https://mockup-pg-web.kakao.com/v1/c35d1d11dda00d7389fc1d466a5cadd99026b34004eadf92fca04023576bef2a/aInfo",“next_redirect_mobile_url”:“https://mockup-pg-web.kakao.com/v1/c35d1d11dda00d7389fc1d466a5cadd99026b34004eadf92fca04023576bef2a/mInfo”,“next_redirect_pc_url”:“https://mockup-pg-web.kakao.com/v1/c35d1d11dda00d7389fc1d466a5cadd99026b34004eadf92fca04023576bef2a/info”,“android_app_scheme”:“kakaotalk://kakaopay/pg?url=https://mockup-pg-web.kakao.com/v1/c35d1d11dda00d7389fc1d466a5cadd99026b34004eadf92fca04023576bef2a/order”,“ios_app_scheme”:“kakaotalk://kakaopay/pg?url=https://mockup-pg-web.kakao.com/v1/c35d1d11dda00d7389fc1d466a5cadd99026b34004eadf92fca04023576bef2a/order”,“created_at”:“2021-08-23T10:06:14”}",0,"”,200]