How can i resolve the turn server error on aws ec2

I am trying to setup the turn server on aws ec2 instance. But i am getting the errors after testing it. Could you help me somebody to resolve this error given the screen shot below ?

Note: errors from onicecandidateerror above are not neccessarily fatal. For example an IPv6 DNS lookup may fail but relay candidates can still be gathered via IPv4. The server stun:50.112.160.61:3478 returned an error with code=701: STUN server address is incompatible. The server stun:50.112.160.61:3478 returned an error with code=701: STUN binding request timed out.