Odd differential in Accounting and Physical Stock

Odd differential in Accounting and Physical Stock

Hi there,
Around six months ago we noticed that there was an error in one of our product's stock values. Despite seemingly having no outwards requests unfufilled for this item (I.E, no stock committed any longer at the moment), Accounting Stock is -1 while Physical Stock is 0. Here's what it looks like:


While it's not critical to our functioning, this does cause some annoyance and slowdown from time to time. Is there a way to manually go in and adjust the Accounting Stock value to account for this, or is this something we're missing? Has anyone else dealt with this?

Thanks for your time.