Why is my Facebook Shop displaying deleted items?

Hello, we have discovered recently, maybe since the Facebook app in Shopify has changed, that our Facebook Shop is showing old items which been deleted from our website! A customer fortuanelty let us know, I am noticing error 404 in google anayltics as customers are being redirected from these old Facebook items to a nonexistant page on our website. Any help much appreciated.

Hello,

You have to cancel the Facebook and Google integration and do it again.

Best regards,