Can't Delete Membership level!

I had created a free level and premium level. We are running into too many issues trying to configure other software so we are going to make everything free. For some reason the dashboard is no longer visible to members and allowed menu tabs are taking them to protected content page. So I moved all members to all access level/subscribtion, but it still says there is one member out of 1200 that is on free level. But if I try to filter, it says no members at that level. And because there is one member at that level i cant deactivate or delete subcription level!