[Koha] My Overdue Items Report is adding extra names

My overdue items report shows a lot of extra names of people who don't have any overdue books. There are over 30 names of people who don't have overdue books listed. Some of the names are repeated three or four times. Has anyone else had this problem? Do you know how to fix it? Thanks! Amber Amland Amber Amland Librarian Mountainview ICS library@mountainviewics.org