Need experts dealing with Https (SSL issue)

Last week I applied https to my whole website but when i checked the page rank today, it turned back from 2 to 0. Any experts on http vs https. I really need to use https on the website but i checked the cache version, my website was deindexed. Please help

Make 301 to https and make sure your cert does not sound alarm in browsers.

so you mean from https to http?

I didn't know ssl would cause a problem. Google itself has ssl and it's still got a pr 10

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Ummm, it's probably not an SSL issue. You do any black hat SEO lately? Google might have just caught up to you. :O

--> Oh, and did you check Google Web Master Tools to see if they reported any specific crawl errors?

nope, the site is entirely using white hat. there are lots of articles in SEOmoz regarding the SSL issue. Again, previously, we are using the http but we decided to use the https for security purposes. When I checked the page rank, it went from 2 to 0. I also have a problem with the redirection, the https://domain.com isn't redirecting to https://www.domain.com. It might create duplicate content for https://NON-WWW and https://WWW. We already redirected it using the alternative rel=canonical to http://www.domain.com.

NOTE: In canonical, I've redirected it to http since there are some experiencing problems with https.