A family of Microsoft word processing software products for creating web, email, and print documents.
If you don't mind running a macro (see https://www.gmayor.com/installing_macro.htm if needed), the following one will locate the first Ref field in the document that displays a result of 0. (Cross-references are Ref fields.) The field will be selected and the macro will stop. After you fix that reference, run the macro again to find the next one if any remain.
Sub FindRefTo0()
Dim fld As Field
For Each fld In ActiveDocument.Fields
If fld.Type = wdFieldRef And fld.Result = "0" Then
fld.Select
Exit Sub
End If
Next fld
MsgBox "No more 0 references"
End Sub