Application Error

SyntaxError: Unexpected token '<', "<!doctype "... is not valid JSON
    at async vh (worker.js:5725:179)
    at async Nr (worker.js:760:11)
    at async Promise.allSettled (index 1)
    at async Ku (worker.js:1341:13)
    at async worker.js:1453:296
    at async i (worker.js:4631:24)