This is an issue solution that I had a few days ago and finally figured out a solution.
So this is a thread for those that may encounter the same issue.
When running applications such as tapatalk phone would start the application and a few seconds after using it would come up with error screen Internal Service Failure.
This was only noticed on applications that use the amazon appstore.
So after some nandroid restoring, data wiping and many other troubleshooting things it was still giving the error.
Here was the Final Solution:
Uninstall Amazon Appstore.
Logon to Amazon and remove the registered device (your device).
Follow instructions on adding a new device on website (same page as device listings).
Once you re-install the amazon application you will have to verify with user/pass.
You will have a listing as your phone on the device listings on Amazon website.
That is all you should need and anything that was downloaded from Appstore should work fine with no crashing or pop ups.
One thing I did is removed all my devices from the device page just to make sure I clean up any duplicates.
Agreed. you should be able to run amazon app without the Amazon Appstore app now if you have the new(er) Amazon app. But signing out of Amazon app and signing back in resolved it for me. I had Amazon Appstore removed so no need to signout/in of that app.
Thanks for the help! I found that I didn't have to go through as much trouble as you did. I simply uninstalled the latest update to Amazon's app and that fixed everything. When you go to the app to uninstall via settings, there's a tab that says uninstall latest update. I figured I had nothing to lose, so I gave it a shot. About 3 seconds later everything was working just fine.
TRIED EVERYTHING listed in this thread. nothing worked. called Amazon and spoke with a couple of different people. Finally spoke to tech support guy who had me go to App manager>click on amazon underground app> force stop>cleared data and problem solved