Yeah, as I mentioned in the other topic, it looks like Barter is currently preventing other websites (or just Lestrade's?) from getting data from it.
Someone would have to ask the BVG webmaster to look into it and re-enable outside scraping.
We had this discussion years ago, and settled on a scraping system that was soft on his servers, I can look into making the updates less frequent (it's better than nothing), but if there's no way to get data from BVG, I will no longer be able to connect users between the websites, and make it possible to transfer tradables with tags, etc. Which would be... bad, for both websites (in my opinion).