A new one took its place, although one not related to Klaxon I believe. https://pastebin.com/3pcHR4zX

You touch view not from UI thread. You use kotlinx.coroutines so wrap your doResume method to

withContext(UI) {}

For UI you need this module from kotlinx.coroutines: https://github.com/Kotlin/kotlinx.coroutines/blob/master/ui/kotlinx-coroutines-android/README.md Also take a look on this guide about using coroutines with UI https://github.com/Kotlin/kotlinx.coroutines/blob/master/ui/coroutines-guide-ui.md