Hey everyone! I wrote this out in another thread, but will repeat it here for you as well.
Unfortunately, some of those products may not be in violation, but because they may be (determined by Shopify's Acceptable Use Policy, not Oberlo) they can not be imported. It's very frustrating and I have had a few instances where this has happened to me as well. However, because this is relying on Shopify's policy, Oberlo, nor the extension, can simply go over it. This issue has been brought up and the product team is working on it, but there's no solution just yet.
One workaround I would suggest doing is importing products from the Oberlo marketplace. These products are "pre-screened" and you can find many of the same ones you were trying to import, but are not flagging the Shopify policy. If you look up a similar product you'll be able to find options you can import in the meantime. Hope that helps!