I am experiencing this error message in a QBO account.
In both the New Document & Edit Document screens (not customized), when I select the Folder dropdown list, I'm not able to choose anything, it just displays the error about fields being displayed not been deleted.
When I click on the ..., it takes me to New/Edit Document folders screen, but I get the following error when clicking the Select link from the grid below:
Error Setting the Active Record ID for the screen.
There was a problem with the 678703488 field on this screen. Please remove and readd the field and republish this screen to resolve this issue
Also, just a comment on Document Managment in general - there is a lot of linking around to other screens and it gets a little confusing. While doing some testing, before I knew it, there were 3 pop up screens on top of my original. Not sure what would make it easier, maybe allowing the linking to customer/vendor/activity/opp OR estimate/invoice/payment to take place in the New Document screen, once the Internal check box in unchecked. Just a thought.