How do i correct Inventory valuation report that shows item with 0 quantity but value

Good day everyone,
I currently work as an ERP Analyst and we use NAV 2017.Recently, when we run our inventory valuation report, we discovered there are some items that have 0 quantity but with value

Please note:
1.Our Average Cost Calc Type in Inventory Setup is set to Item.

2.When we run the inventory valuation, we run for all locations.

How do i go about correcting this please?

Thanks for your help.