Dash Deployment on heroku - runtime error

Hi everyone, I have deployed the dash app on Heroku. The deployment has been successful however when I run the app I get an Application error and Heroku asks me to look at the logs of the app. On looking at the logs I get WORKER TIMEOUT error.

Can someone help?

I believe Heroko limits web processes to 30 seconds - how long are your callbacks taking?

How do you check how long the callbacks take?

I just noted the time (via datetime.datetime.now()) at the start and end of the callback and did a diff