Job Cancelled on Ktor's request executing

Basically, I've REST by Ktor in my android app. As remote data storage I'm using Back4App. When I send post method I have following message in ktor's logger:

REQUEST https://parseapi.back4app.com/classes/Feed failed with exception: java.util.concurrent.CancellationException: Job was cancelled

I don't manage coroutines logic in app, so I don't even understand why I keep getting this error.

By the way, when I use Insomnia to test method - everything is good. And when this error appears in app - app doesn't fall and keep ruuning.

So the question is: how to deal with that bug?

The code with request:

suspend fun addFeed(newFeedDto: FeedEntity): Result<Unit> = withContext(Dispatchers.IO) {        runCatching {            val response = client.post(BACK4APPURL) {                contentType(ContentType.Application.Json)                setBody(                    FeedDto(                        url1 = newFeedDto.url1,                        url2 = newFeedDto.url2,                        content = newFeedDto.content,                        nytUrl = newFeedDto.nytUrl,                        newsName = newFeedDto.newsName,                        newsPreview = newFeedDto.newsPreviewUrl,                        tags = newFeedDto.tags                    )                )                headers {                    append("X-Parse-Application-Id", **)                    append("X-Parse-REST-API-Key",  **)                }            }            if (response.status != HttpStatusCode.Created)                error("Status ${response.status}")            response.body()        }    }