Amazon Flex App Troubleshooting Expert

I'm in need of an Amazon Flex specialist to address a recurring issue I'm facing with the app. The app frequently crashes or freezes during active delivery routes, causing significant disruptions to my deliveries and overall experience. I need someone who can diagnose and potentially fix the issues, or provide guidance on how to best manage these problems. Experience with app troubleshooting, particularly for the Amazon Flex app, is crucial for this project. know signature mechanis and 420 error