I’m sorry, I’ve followed this post OpenVidu-Call not working properly and now it works, I had exaclty the same error. The problem that I’ve now is that on samsung browsers openvidu doesn’t work. If I try the demo page it works on samsung browser, firefox and chrome, but if I try my solution, it works only on firefox and chrome, but not in samsung browser. Probably because I use openvidu-browser 2.12, today I’ll update openvidu-browser, I hope the problem is only that one.