Fix a bug in webrtc code

so i have a webrtc & [login to view URL] (Nodejs) one to one video chatroom and there is bug which i can not fix so i came here it is not a big problem, there are many errors thought so i can not write all of them now, if anyone will be interested i will give you my code and you can test it yourself. it only works with one browser not from different devices. if anyone has experience with webrtc and [login to view URL], i will be glad to have contact with you