Can't download USA Castlevania Dawn of Sorrow

I've tried downloading the USA Dawn of Sorrow a few times but for some reason when I click download nothing happens. However when I try to download the EU version, it is able to download. Is it alright for me to get the EU version or would it be region locked on my US 3ds?

If not can someone see if the Dawn of Sorrow download is busted?
https://vimm.net/vault/18598