Unable to Load Card Catalog


I am having an issue accessing card validator with message:

Unable to Load Card Catalog
Unfortunately, the card catalog is unable to be loaded at this time. Please try again.

I found only a single post on these date 6 days ago with users having similar issues, but no response. Can someone comment on this problem either from twitter or maybe those who experienced the same.

Thank you


Same thing here though it was working yesterday morning for me.