My now tv will not load anything on sky sports when i try and select a program.
All it says is' something's not right. Give it a moment or check nowtv.com/status for updates.
It has an error code at the bottom of my screen: PL-0
When you say monthly pass i am assuming you mean a full sports monthly pass not a Mobile Sports Pass ?
I don't own a Samsung Smart TV, but have you tried pressing the back button on the remote a couple of times or logout of the NowTV App switch the power off at the television mains plug for a minute, switch back on the television and sign back into the NowTV App or try another fresh download of the NowTV App.
Apart from that see if another forum member who owns a Samsung Smart TV can hopefully chip in here with some suggestions or see if live chat can offer you some further assistance.
Use this link for live chat.
You will be surprised how many people on here get confused between a full blown monthly sports pass and a Mobile pass and don't know the restrictions when using the Mobile Sports Pass.
See if live chat can help you out.
The only other long shot things you could try is switch the power off on your Router for 30 minutes, if you are using a VPN on your Router or Television then disable it.
Or maybe try a full factory reset on your television, though you would have to setup your television again from scratch.
But all these are pure shots in the dark.