You will see this query if you have no support staff recorded against any of your classes in Admin > Census > Spring > Class Details.
To amend this, click the little pencil in the actions column at the end of the class you need to edit.
Once you have update the support staff numbers ensure to click the little tick in the action column to save.
If the information recorded for the support staff numbers is correct and this query shows you can annotate this query when uploading the census on collect.