Nugae galleria review for Facebook & Instagram

Since I updated the old version literally NOTHING is working anymore, or at least I am not understanding how to everything is working. Not that I ever used Fb too much. Everything is messy, I never liked it for my business and decided to never use it. I just use Fb in order to have access to my business account on Instagram and their product tagging. Anyway, I had to update the old Fb Shop app with the new one, and since then the Shopify Product Catalog is not updating the new items I am uploading on my website. And what is even weirder is that the bulk editor in the Fb app of Shopify shows instead all the new products I am currently uploading. It's been 4 days now. I went through every forum on the internet about the topic, and sorted out nothing. Frustrating to say the least. I cannot post any of the new products on Instagram cause there's no way of tagging them. I honestly cannot believe they still don't have a customer service dedicated to business accounts at Facebook and they just let us go browsing the internet hoping to find something to sort everything out.