Reading issue with Chromecast

Hello, so I’ve had a Chromecast for a few months now and it works perfectly. I mainly use it to watch movies on streaming, but since I moved, no players work, for example: openload / mystream / netu etc. Only Uptostream works normally.
I should note that I tried the players without the Chromecast and they work fine. So I deduce that the problem is related to the Chromecast; can you tell me more about it please?

Ps: to watch a movie, I go to the streaming site, choose my movie, my player, and I cast with the MomoCast app. I’ve tried all the other apps and nothing works.
For those who will tell me it's illegal, I have a Netflix and Amazon Prime subscription, but there isn’t always what you want.
So thanks in advance; I really hope to find out where the problem lies.