Deploy dash to Heorku App Crash

Hi all,

I have a dash app which is a simple live bitcoin price tracker. The app works fine on my system but when it comes to deploying on Heroku I am facing some issues.

When I deploy the app of Heroku I see no error but post that when I open the application I get Application Error and upon checking the logs I see App Crashed on CMD. Attached are the images for your reference.

I have already referred to this link.

Looking forward to any help.