Hi @DGL2 and welcome to the forum. The issue you are having is not that uncommon. A restart of the puck will probably resolve the issue for you as it tends to clear software glitches. I works for me when I get the technical fault error message.
To do this go to Settings > System Management > Resets & Updates > Restart device. It takes a couple of minutes to completely reboot and you will have a blank screen for a couple of minutes before the Sky logo appears.
------------------------------------------
If my post has solved your issue please mark as an "Answer" as it helps others identify the solution
If it has helped please give it a "Like"
