VPN on Mac

Hi, I use a website to watch football games replays but recently the videos started displaying a message that you need a VPN to watch them. However, the same website on my phone it works just fine, and also on other devices like my friend's PC or my mother's mac, it still works. I tried using VPN but videos still don't work. Also, trying to watch on my mac connected on another WiFi's or using phone for tether doesn't work. I tried Firefox, Safari and Chrome.

Anyone have any suggestions?