Go to “Settings” smartphone, tab "Applications"
Within the tab "Download Manager"
Once you have entered the “Download Manager”, you need to clean the data download by clicking the “Clear data”
Then go to the Google Play Store, and start downloading the necessary applications.
If the application still does not load and is in standby mode, open the “Notification Panel” (by swiping down from the top) and click the download icon (with an arrow) and to allow the download through mobile data.