I am also getting this message while trying to watch NowTv on my LG smart TV. Any help would be appreciated.
I have the same issue, LG TV.
It's happened several times and the only fix I've found is to reset the TV, which is a total pain in the backside as you have to reinstall everything.
Gonna cancel my sub if it happens again as it's doing my head in. Just about to reset the TV.... Again.... For the final time!