My homepage deteled from Google

Can anyone please advice, i had nice serps in google but my homepage: www.mysite.com deteled from google, i can't find it in G. for all my words, nowhere... but other inner pages like www.mysite.com/contacts etc not deteleted from google.
What is problem? And will my site return? Thanks

Need a few more details ...

Is the page actually delisted or just performing poorly?

It does not sound like your site has been penalized ... all pages would be gone.

Try a search like cache:www.mysite.com to see if it is still in the index.

Maybe it is just an index error and the page will pop up after a couple days.

Thanks for reply.
I checked cache as you adviced and no my site no have cache...
I can not find my hopepage for all my keywords etc i tried link: mysite.com and also not found my homepage only inner pages. My site is 3 year old and have pr4.
I checke "Google Ban tools" and they replied that site no banned.. Maybe i have sandbox?

Wise:

I just had the same thing happen to me today. SEO playground site (not my main site, thankfully) that was hovering toward the bottom of the second page in Google serps for the last couple of months. As of this morning, Google doesn't even know it exists. Doesn't show up in a site: search or domain search - but the rest of the subpages in the domain appear just fine. Google webmaster tools still shows me as being at the bottom of the second page for my main search term, and on the first page for a common misspelling, but when you do the searches it's nowhere to be found.

The thing that I think may have triggered it for me was getting my first backlink indexed by Google. I'd debuted on the 2nd page for my main site's money kwd phrase as soon as I submitted a Google sitemap. As I said, I have hovered there for the last couple of months, and recently started playing with directory submissions to see where that would send me. Google finally indexed one of my directory links today (Yahoo had indexed multiple links weeks ago), and, curiously, I'm now out of the serps, and even out of the index. Now, the link that Google indexed was from a page that boldly declared "All links accepted and posted immediately", so I knew I was playing with fire, but sheesh, that seems a little disproportionate, so I'm reluctant to blame my one measly backlink for my homepage's disappearance. I'd be interested to hear if anyone else has had a similar experience.

neo_schmeichel, Thanks for informing your situation.
I not added any links to my site for a while from other sites and my site grow in serps but 2-3 few days ago i submitted my site link to mass directories (most of them not very good) maybe my problem happen because of this?

See more discussion about the same issue at Google Three-Kings Penalty thread:
http://forums.seochat.com/google-op...ate-118735.html