What should I do if the App information page remains in 'Pending'/'Installing'/' Uninstalling'?

If the status on the App information page always remains in 'Pending'/'Installing'/'Uninstalling', while you are searching/installing applications, you can try to click the 'Clear' button in the top right corner of the GBox main page to reset Play Store, and then reopen Play Store to download/update/uninstall the application.