Charge your phone. 5% = things get weird sometimes.
1. Verify you are on the same WiFi (Looks like you are)
2. Verify your connected to the Xbox with the Xbox app.
3. Pull a battery out of your controller, and make sure it is assigned to your GT, then press any key in Ark to assign it back to your player.
4. Reboot your XBOX, and\or Phone.