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Force stop the Galaxy Themes app and in system settings.
If the app was sideloaded as an APK rather than installed directly from the Play Store, the license verification will naturally fail. How to Fix Hex Installer License Errors 1. Uninstall Secure Folder
Open the Play Store and ensure you are logged into the used for the original purchase.
If you are using a third-party APK, the license error is expected. The official Hex Installer on Google Play is the only version designed to pass verification. If you previously bought it, you can reinstall it for free by visiting the Library section of the Play Store. Summary Table: Troubleshooting Steps Primary Solution Uninstall Secure Folder from system settings. Verification Failure Clear Play Store cache/data and re-login. Theme Application Error Delete HC Base in Hex Troubleshoot and reset Galaxy Themes. Sideloaded APK Error Reinstall via the official Google Play Store .
On One UI 5 and later, the presence of the Secure Folder often blocks the app's license verification.
Sometimes the Play Store itself loses track of the purchase: Clear the cache and data for the app.
