Re: what is wrong with my phone??
▼How do I reinstall apps that I already own?
If you delete an app or get a new phone, you can always get the app again. To reinstall one or more apps, do the following:
In the App list, tap Store Store Tile.
Tap More More icon, then tap My apps to see a list of every app you've downloaded on this (or any other) Windows Phone.
Tap Select Select icon, select one or more apps, then tap Download Install icon.
You'll need a Wi-Fi connection to download any apps that are larger than 50 MB.
▼What does it mean if an app is unavailable for my phone on windowsphone.com?
Some apps and games are available only for specific phone models—often because the app is provided by the phone's manufacturer. When you sign in to the Windows Phone Store on the web, we'll check your phone model and automatically allow you to get the app if it's available for your phone. If it isn't available for your phone, we'll notify you on the app details page.
https://www.windowsphone.com/en-US/how-to/wp8/apps/download-apps-and-games-faq