Juggledad, the answer to your first question is a long story, but this is a shortened version:
This issue actually started over a month ago when the Theme had a major update. With no warning, the current users of the Theme had to rewrite all of their pages. I’ve been trying to rewrite for weeks. After the Theme’s update, the Theme’s Demo data is uploaded via WordPress Importer. For me, that resulted in a “Connection Reset” message and not being able to access WP at all. That was ultimately fixed by replacing the wp-admin and wp-includes folders with new copies, a fresh install of the theme, deletion of the child-theme, and the Theme Demo files split via WXRsplitter and uploaded via FileZilla. Afterwards, I found I could not access “Pages” or the Theme’s “Portfolio” section in my Dashboard. Doing so resulted in blank white pages. Therefore, no access to the Theme’s Demo pages. While waiting for a response from the Theme’s support, I realized I could access the Theme’s Demo pages by adding them to my menu. I could add a Demo page, see how it was set up, and then create a new page using that set up. That was working fine. The website updated and looked great. But I still couldn’t get into my Dashboard’s “Pages” and “Portfolio” sections. Then, a couple days ago I started working on the final area: the “Portfolio”. I added the “Portfolio Demo #1” page to my menu and created a new one. It worked fine. Then I tried to add the rest of the Portfolio Demo’s all at once. That’s when the problem with accessing the Dashboard Menu started. In addition, my website went to an all black screen (www.dcartglass.com). So now, from my Dashboard I can no longer access “Menu”, “Pages” or “Portfolio”.
To answer your second question – At the point when I started having the Dashboard>Menu issues, the menu was set up like this:
Home
Portfolio
Aqua Gallery
Demo Portfolio #1
About the Art
About the Artist
Contact
The last thing I did was try to add about 5-6 new demo Portfolios at once (not shown in the menu list above).
Sorry for the long explanation.