Thanks Liski for your response.

I wasn't on public when this happened. I was watching channel 50 'Mehwar' and then all of a sudden the screen blacks out and this message appears.

I think this always happen around 7pm and 10pm and stay for few minutes and it happens while watching a UBI channel.

Anyway I just did as you told me with the smart card and see the results tonight. If still an issue I'll PM you and let you know. Thanks.