Keep getting unable to connect meesage

I have a Raspberry Pi3 server recording satellite programs and distributing them around the house. I usually have the web page open on TVHeadend during the day but in the last couple of days when I go to look at it it keeps asking me for the userid and password. I enabled logging in the browser and I am getting the message
There seems to be a problem with the live update feed from Tvheadend. Trying to reconnect…
Here is a link to the logs
Please can someone tell me what is going wrong?

Thank you very much