SessionNotCreatedException error when running in real Android device

Getting following error when trying to run a test case in real Android device. Can anyone please help in getting it resolved

org.openqa.selenium.SessionNotCreatedException: Unable to create a new remote session. Please check the server log for more details. Original error: An unknown server-side error occurred while processing the command. Original error: Cannot start the ‘net.one97.paytm’ application. Visit https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/android/activity-startup.md for troubleshooting.

Looks like that url is bad. Here is the new location:

Hi @here

Can anyone help me with this? Has anyone faced this issue?