I'm sorry to hear that you're getting this error on your TV service. I have carried out some checks remotely and can see the box is showing as 'Offline' at present. Can you please check that the thick white wire at the back is screwed on securely and not loose? Also confirm if the box is currently turned on please?
Once confirmed, I can help you further.
Keep me posted, I'm here to help if you need me.
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