My environment was working well and suddenly it started to show some error. When a single user initiated the call and started to stream the call, then screen share and enable camera throws different error.
During screen share this error
If i enable the camera then this error
Additionally I found this other message when I initiate streaming
2021-12-15T18:37:37.315Z [modules/xmpp/strophe.util.js] <Object.r.Strophe.log>: Strophe: Error: Failed to construct ‘RTCPeerConnection’: Plan B SDP semantics is a legacy version of the Session Description Protocol that has severe compatibility issues on modern browsers and is no longer supported. See [WebRTC] Deprecate and Remove Plan B - Chrome Platform Status for more details, including the possibility of registering for a Deprecation Trial in order to extend the Plan B deprecation deadline for a limited amount of time.