Authentication error via portal http://mw1.iptv66.tv/stalker_portal/c/index.html Even after doing iptv reset.... Is it down?

Hi, I had this service last year and most of the channels worked great and were running at fantastic quality. Now im running it again through kodi and only half of the channels work and the quality is not so great. (American/Canadian channels). Is there a maintenance team working on these...