Clean up the App Store
The problem is, inter alia, common in the contacts, the gallery and the launchers. For example, I often get on my Galaxy S3, the message 'contacts was finished,' which is really annoying. The approach to correct such error is usually the same.
First, you should call the settings of your Android smartphone.
Scroll down until you see the Application Manager or apps - the name is different for the various Android devices.
Wipe with your finger to the left until your application to the tab titled All passes.
Scroll down to the finished app, hits it.
Here you can erase the data and clear the cache.
It is important to understand that only the changes that you have made to the app it resets when deleting the data. The actual content such as the images are retained in the Gallery app. When empty the cache, the smartphone is cleared of stored data Speedup loading apps. The deletion is opening the app, although a bit slow, but it will help to solve the problem.