Thank you for taking the time to visit the Community to report this issue although, I apologize that you have not received a response.
If you have not done so already, I would start by signing out of the program and signing back in.
This located under "Quicken" on the menu bar. In the Quicken menu, please choose "Sign Out" and sign back in with your existing Quicken ID.
Once this has been completed, please attempt to update once more and let us know the results!