How to fix an error in a POST request to Yandex Services?

Question

API

There is a bot that tracks orders on Yandex Services and sends responses. So, until yesterday, the responses were without problems. But now the response is not placed in json.

Here is the json response from Yandex. It differs from the normal answer with this: "violations":{"text":["order_reaction_strict"]}.

{"orderReaction":{"createTime":1636961500,"orderId":"a27ff9dd-50d9-4c8f-8a38-778b6674da70","workerId":"29e2a981-237d-46fa-97f1-8c6432b2abe4","description":"Доброе утро. Звоните!","price":null,"photos":[],"files":[],"violations":{"text":["order_reaction_strict"]},"hidden":null,"isFromPartner":false,"isPaid":false},"remainingReactionsCount":2,"actualAgreements":0,"unreactedOrdersCount":0}

I can't figure out what's wrong...