Downloading Music Videos

I have been using your website to download music videos no problem for the last 48 hours with no issues. What stard happening now is when I type ss after the www. it will go just like it should but when I choose which size of file I want, it will redirect as if it is trying to go to a different page. Is there something going on with the site? I noticed if I try and download a normal youtube video it still works, maybe there is a setting on my computer that may have changed? Is there a maximum downloads cap on the website?