Use a vpn my dude. You may get an angry letter in the post!
I’m having the same issue with my iptv. We need to change the portal url but I don’t have any updated url.
Try changing your DNS
Interestingly the portal URL is working today, if it doesn't change your router DNS to Google DNS, it works
Also, they have new URL anyway
Are you looking for a new IPTV provider? I only know how to do it based on a video from YouTube. The videos are better at explaining it
Do you use a VPN?