Cache can use the diskspace on your Android device. And the diskspace will never be enough. That’s why you may want to clear the cache if you are running out of free space on your smartphone or tablet.
How to clear the cached data for all apps
Go to Settings:
Wait until the used space is calculated.
Tap on Cached Data:
You will see the message This will clear cached data for all apps. Press OK:
Wait for a while until the cache is cleared: