@Raghunatha N S Thanks for posting your question in Microsoft Q&A, apologize for any inconvenience caused on this.
From the above shared logs, we understand that App service container not able to start within the specified time.
- Could you please add this
WEBSITES_CONTAINER_START_TIME_LIMIT
and value to 1800 to increase the app service container start time. - Try disabling the HealthCheck on the app service and check,
- Review the app service logs by enabling the diagnostic logging to see if there are any application failures.
- Try troubleshooting the issue using the built-in detectors under the diagnose and solve problems of your app service.
Do let me know if you are still the facing the issue.