No sound on my sky glass

[Laurenkillingswor]

This morning I come down and there is absolutely no sound coming from my sky glass even though it was completely fine just before bed, tried turning it on and off multiple times still not working, programmes aren't loading and also says technical fault when trying to load something 

[peter-marlow+1966]

Try the Netflix app, open it go get help and run the check network,  also see if the sound works  on there