Keep your box current via Live TV > Menu > Settings > Check Update. You must click the update to install it; the "preparing" time depends on your internet speed.
Some updates are pushed to your specific device. If yours won't move to the latest version, contact support with your MAC address (white label on the bottom of the box) and we can push it to you.
If this has not sorted it, please do not keep struggling with it on your own. Email cs@buzztv.com with a clear photo of the white label on the underside of your device, which we use for utility and system checks, and tell us what you are seeing on screen. A person will read it and reply, and you can reply straight back to that email with anything else. Support is Monday to Friday, 10:00 to 18:00 Eastern.