Why does an application black out when you are playing it

Download VLC app from play store and install. Ought to play most video files. Deploy it please.

Is your App Store not working? Try downloading another app other than Bejewelled. If that does not work, contact Apple Support and they will assist you via call or chat. If it does, you may have an outdated operating software.

Some apps are pre-loaded, but to actually use them you have to have a Google Play account. If it was email app it is just looking for your email login to get connected.

To save power the screen will go black after a minute or two being idle.

Normally the Google Play store is pre-installed on these tablets. Check your apps list - it may just not show on the top screen. If you have lost it somehow, try How to install Google Play Store app manually

Go to the Google web site and do a search for Google Play Store it will take you to here

https://play.google.com/store?hl=en

You might need to update the Bejeweled app. Go to the App Store on your iPad and download any app updates.

I'm assuming you don't have the Netflix application installed. You'll need to download it from the Google play store am application that should already be installed. then sign into it(Netflix app) if you already have an existing account. If not then you'll need to create one.

First make sure you have a good internet connection, WiFi or Ethernet.
Access play from your application list. If on do not have it download from Google.com.
When in Play select what you want to download and select, install, you should then be asked if you agree to access of your tablet, agree. It will then download the app and it will apper in your apps list after a short time.

Unfortunately Candy crush was only made for Android and IOS. you can play it online on a computer or just download alternatives like Bejeweled or Candy Village which is what I play. Sorry