Thank you for providing more details, although I apologize that the trouble continues to persist.
At this time, if you are needing to move forward with Quicken Bill Manager, I would recommend contacting support directly for further assistance.
https://www.quicken.com/support#contact-support
The biller profile did not provide any additional details to be able to isolate this issue further. Support has the tools to research this and provide a solution.
-Quicken Tyka
Thank you for taking the time to report this issue to the Community, although I apologize that you have not yet received a response.
What is the name of the billers that are you encountering this error message with?
I would like to review the online biller profiles to look for any issues and need the name to confirm and locate them.
Please let me know!