Azure App Service Flask Deployment issues with Error "didn't respond to HTTP pings on port: 8000"

Hello Everyone,
I am Deploying the Flask Web app with Immersive Reader and I am trying  deploying it by a ZIP file, tried with visual studio code too by the steps mentioned over the link below:
https://learn.microsoft.com/en-us/azure/app-service/quickstart-python?tabs=flask%2Cwindows%2Cazure-cli%2Czip-deploy%2Cdeploy-instructions-azportal%2Cterminal-bash%2Cdeploy-instructions-zip-azcli
So, I have gone through each step mentioned there and applied it and showing me the below result.

I have gone through diagnostic resources. But didn't find any solution for the following error in logs.