An Invoice Was Entered Without Using PO and Isn't Showing as Invoice Received

SOLVED

I had entered an invoice in AP → Invoice Data Entry instead of using PO → Receipt of Invoice Entry. When I run the Open Purchase Order Report. The PO is now Backordered and it shows as the item being ordered and received, but not invoiced. The invoice was paid a couple months ago, so I can't just reverse the invoice and re-enter it into PO. It won't let me use the same invoice number, it pops up the error message "This invoice already exists for the selected vendor. Do you want to delete this entry?" Creating a new invoice will put it back on AP and it was already paid. How can I close out this PO?