NFPS / Private Stalker IPTV android beta app

[MTBv01]

I'm using the android stalker iptv beta app , it works brilliantly until tonight when I keep getting failed to connect to portal ?! I can people posting about maintenance ongoing is this why I can't connect to portal ? I have iks yearly subscription with 188 days remaining so can't be anything else ?!?!?? Any advice would be much appreciated