Sadly LayerVault is shutting down:

> "LayerVault will be shutting down on April 11, 2015. Current customers have until then to download their files from the service. Beginning on that date, the web interface will no longer be accessible and the Mac app will stop working. (...)
Some folks may be wondering: Why? We will try to share our experience as best we can via post-mortems and blog posts, but the short answer is simple: we failed to make LayerVault financially viable, exhausted our existing capital reserves, and were unable to secure additional capital to sustain uninterrupted service. We ran out of money. Although the service will cease, we’re still hopeful that the technology may find a home."

font: LayerVault website