This error message occurs when an app's data files become corrupted. A few things to try:


1. Clear the app's data and cache: Click on the "Settings" icon on the desktop of NextD Player. Then scroll down to "Apps". Find the app that displayed the error message earlier. Select "Clear Cache" and "Clear Data". This will force the app to reload the data files.

2. If the step above doesn't solve the problem, try uninstalling and reinstalling the app: Click on the "Settings" icon on the desktop of NextD Player. Then scroll down to "Apps". Find the app that displayed the error message earlier. Select "Uninstall". Then reinstall the app from Google Play Store, Amazon App Store, or 1 Mobile Market.