deadsea - 10:31 am on Jun 11, 2012 (gmt 0)

Make sure that when you fix this you don't simply delete the robots.txt file making it 404 not found. If you do that, Googlebot often just thinks that it should honor the last robots.txt that it found and your site will continue to be not crawled.

Instead remove the "Disallow /" from it leaving a robots.txt file that explicitly allows crawling:

User-agent: *