Don't know it this has been fixed, but if not, would be great to look into this isssue.
See this edit and search for ref name="Billboard". In the old wikitext the URL description part is "[[Billboard]] diskogrāfija {{en ikona}}", and in result we get "[[Billboard". I know, how broken "[[Billboard]] diskogrāfija {{en ikona}}" is (in description), but it's getting worse.