Apps on your phone are meant to misbehave sometime or the other either pre-installed or the ones you installed yourself. It of ten happens that apps do not behave the way they are supposed to as the temporary files relating to the app are misbehaving. In such cases if you clean up the app's cache you're likely to have a better affair with the app.
You can clean up your phone's cache from the device's settings menu. Go to Settings and then to Apps. Once you've done that choose the app you want to fix and click on it. You'll then see a screen with various options, with Clear Cache being among them. As you tap on the Clear Cache button, it instantly removes all temporary files associated with the app. That might be the soluition to the misbehaving app.
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Well, if that doesn't work don't freak out, you've got other tools at your disposal too. What you can do next is try clearing the apps data. You will find the Clear Data button just above the Clear Cache button. Beware that clearing the date will erase all personal settings, accounts, and files associated with the app so you're practically restoring back the app to it's original installation form.
The sliders below show a tutorial as to how you can go about clearing your apps data and cache.
Pull down your notification screen and click on the Settings icon.
Congratulations! You have reached the phone's settings menu. You can now begin with the process.
FInd the Apps icon and click on it.
You will be redirected to the phone's app menu where you can see all apps installed on your device. Choose the application you want and click on it.
Scroll down to find the "Clear Cache" button. Click on it to clear your phone's unwanted cache. Doing this instantly removes all temporary files associated with the app.
To clear the app data, look above the clear cache button. You will find the app data button sitting right above it.
Press the "Clear Data" button to clear the app's data. But be very sure before you do so as doing this will erase all personal settings, accounts, and files associated with the app.