FireEdge public endpoint is not working, please contact your cloud administrator

Hi, I’m not able open a vnc console on sunstone port 9869 I get TUNNEL_ERROR and the following message in the sunstone footer.
FireEdge public endpoint is not working, please contact your cloud administrator

I can however open a vnc console using fireedge onesunstone port 2616

OpenNebula community edition 6.4.0

Any ideas?