10 days ago i have activated my web-site with whole new design and content and because of it's an old web site and has 2 pr, it's quickly added to search results by google.
Then i sent some important url's to google via webmasters tools for make google index those pages. After 2-3 days those pages were indexed.
But i realized those pages are disappearing from index and today all sub-pages disappeared.
There aren't any spammy content, pages were original, valid html5 code.
What can be the cause of this ?