VGK IPTV is an obvious pirate operation. For instance, Prey (the 2022 version) Is a Hulu Original. It is only legally streaming on Hulu (and maybe some other Disney properties). But VGK IPTV lists it as streaming on their service for free. That should be a big eye-opener.
Some very large pirate IPTV operations have recently been shut down in Europe and their operators have been arrested. If VGK content is now failing to load, possibly those shutdowns included whatever source VGK was using for its films.