I've gotten this error message whenever I tried to create a new Data File. In checking posts in the Community, all I found was the instruction that I contact Q' Tech Support, which I did. Thanks to
@Q'Marvin, the problem was eliminated, and I can now create new data files again.
Based on our call, here are two things you might want try to solve this error before contacting support:
1.
Click: Edit/Preferences/Quicken ID & Cloud Accounts/Sign in as a different user. Type "yes" to confirm sign out and then log back in with your
current username and password.
2.
Click: Edit/Preferences/Quicken ID & Cloud Accounts/Cloud accounts associated with this Quicken ID (xx). The next screen shows all (xx) the data files you have in the cloud, including both Q' Windows & Q' Mac. From here you can delete all the ones you no longer need.
I not sure the above was all that is needed to fix the problem, but both proved useful, especially getting rid of all my unneeded files.