Hey, welcome to the community! I know thought of changing your themes must have been exciting, and it will be my pleasure to help keep it that way.
Please ensure that the device is fully up-to-date.
Navigate to and open the device's Settings, and then swipe to and tap Software update or System updates. Next, tap Download and install, Check for system updates, or Check for software updates, depending on your carrier. If an update is available it should begin downloading automatically although you may need to tap Download now on some devices.
Clear the cache.
Clearing the app's cache is kind of like a cleanse for your apps. It will remove residual files that could be slowing down the app.Open Settings, and then swipe to and tap Apps. Select or search for the app you want to clear. Tap Storage, and then tap Clear cache.
Note The only way to clear the cache on every app at the same time would be to perform a factory reset on your phone or tablet.
Clear the data.
When you clear an app's data, the app will restart as if it were freshly installed.Open Settings, and then swipe to and tap Apps. Select or search for the app you want to clear. Tap Storage, then tap Clear data, and then tap Delete. This will completely wipe the app and reset it to the original settings.
Important Clearing the data will reset the app to factory default settings. Any personal settings or data saved on the app will be removed. Some system apps cannot have their data cleared.
