I am creating a zoning map and I tried to add a field to my table which contains the zoning districts, and after trying to add a field I am unable to access the table. I am getting the error message "Failed to load data. Error: Unexpected operation [Zones]." I still have about half of the map left, however all new zoning polygons I have added since yesterday are no longer showing. I read that the error message I received has to do with accessibility, but I am not finding any accessibility issues. Any help would be appreciated.