Welcome to the Q&A Forum

I just ran through your page and all tools included the google structured data testing tools don't show any weird things. 
Do you have a direct url to the place the errors show up so we can take a look?

In basis it looks o.k. to me. the bigger problem is your internal and external link structure which is not very solid.
Further more very small things, your could structurize your page a tad better.

your deep page:
why not h2 "Try Divya Triphala Churna Today"
and h3 "What is Divya Triphala Churna?"
and don't put h3's on ingredients, dosage and such.

Same here. Tried editing it yesterday.

Luie Chris mentIons effort is needed.  But also time and patience. Could you tell us how long the pages are online. did you submit site maps and such.

This seems a technical or rewrite based glitch. please contact me if you and abe cannot work it out. We are working for more than 8 years with wordpress and have seen a lot of weird little things so Good luck and let me know

Yes indeed, if its really a usability thing and you really help people with good content, and extra specific content under a read more that perfectly fine. But in deed be aware of the amount. If you reality punt a small line in preview and pages and pages under a read more that wouldn't be advised. but generally no worries!

You are already answering it yourself a little. iFrames are really bad practice and can through-off search engine bots. If you say the content in the frames are all the same a few alarm-bells go off as well. Why would you want to use frames anyways? maybe you can clarify that a little or show us a the example so we can make the advice a little specific what to do next.

Normally not, when there are followed links pointed from the njoyn.com domain towards the new rewritten url it does. but i do believe that when the url is just rewritten from a big DA domain to a new domain that this won't impact much.

But the DA is just a main score for the entire root domain and does not directly mean that the subdomain has huge importance or authority. This would mean that if you start a example.wordpress.com blog that it would give you huge benefits right away. More about DA on http://moz.com/learn/seo/domain-authority