You might have some problems with an Android app once in a while, but rather than reinstalling the app you can try clearing the App Cache & Data instead.
This will usually solve most of the minor issues and also helps free up storage space on your device, but please take note that it will also clear any login details or custom data that you had saved in the app.
The instructions below will guide you on how to do so on your Android 6.x (Marshmallow) devices. If you are still on an older version of Android i.e. Lollipop (5.x) , KitKat (4.4), kindly refer to the article here:
Open your Settings menu and tap on App.
A full list of the downloaded apps should appear on your screen.
Clearing App Cache & Data
Tap on the app that you wish to reset. In this example, I've selected ITV Player.
Now tap on Storage.
Now tap on Clear Cache and then Clear Data.
If prompted, click on OK to confirm the action.
If you're still having problems, pleases email us at firstname.lastname@example.org. with details on the issue and our support team will get back to you as soon as possible.