On Demand error cl-17

On Demand is not available since 2/23/20. Was working on 2/22/20. Getting error code CL-17. That error code does not show on Comcast list. What's the problem? Even had comcast reset the TV box thru the website. 

Followed all instructions. Still not available. We are paying for a service we cannot access. 

Please advise and correct.