Problem with ID in catalog

I have a strange problem with duplicating product IDs. As you can see from the photo only 10 out of 150 products have been added to the catalog. The strange thing is that I can make sets and run ads with catalogs.

The other question is why VIEWCONTENT appeared twice when I check with a pixel helper?

The fb shop works and there are no problems with it, but in the catalog it gives me these errors. The site is https://www.zlatna. Please give me feedback, because I think now pixel cant get corectly information .