So your site was in Google but it is no longer there , Hmmm ! You have a serious problem then.
What did you do ? Admit hah ! , using cloaking ? hmmm or hidden keyword spamming ? Or you gonna blame your SEO Consultant
Or you really don't know
However, the bad news is your site is not in Google but the good new is you may be able to get your site back in Google
Learn how to do that from Google.