I think you might be misunderstanding the purpose of the Labels option on the
Create ribbon. What this does is create a labels report by taking you through a series of design options in a wizard. At what stage in this process is the error occurring?
If you want to create labels based on a subset of rows in the relevant table or query, having created the report, you will then need some means of filtering it. The simplest way of selecting an arbitrary set of rows for which the labels are to be printed is
by means of multi-select list box in a dialogue form. You'll find examples of this, amongst other things, in MultiSelect.zip in my public databases folder at:
https://onedrive.live.com/?cid=44CC60D7FEA42912&id=44CC60D7FEA42912!169
Note that if you are using an earlier version of Access you might find that the colour of some form objects such as buttons shows incorrectly and you will need to amend the form design accordingly.
If you have difficulty opening the link copy its text (NB, not the link location) and paste it into your browser's address bar.
In this little demo file the first two buttons on the opening form allow you to restrict a report on the basis of selections in a multi-select list box. One illustrates how to filter the report, the other how to restrict its recordset. The end result is the
same in both cases, only the methodology differs.
In my demo the report is not a labels report, but that's not relevant. The same methodologies can be applied to any kind of report.