Heroku: Web process failed to bind to $PORT within 60 seconds of starting (with axios)?

Question

Node.js

Hello everyone, there was a need to upload a telegram bot on node.js to heroku. after launch, the bot works for 60 seconds, after which it crashes with an error in the log:

2021-03-19T19:19:41.959193+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch
2021-03-19T19:19:42.005111+00:00 heroku[web.1]: Stopping process with SIGKILL
2021-03-19T19:19:42.092300+00:00 heroku[web.1]: Process exited with status 137
2021-03-19T19:19:42.173589+00:00 heroku[web.1]: State changed from starting to crashed

Answer 1

The application must listen on port $PORT
https://devcenter.heroku.com/articles/error-codes#...
https://help.heroku.com/P1AVPANS/why-is-my-node-js...