PlugIn Damaged Home Page Only

Hello anyone who is able to help,

I was testing a couple of plug-ins a day or two ago – Form Builder and WP Google Calendar. Form Builder worked find until I installed the WP Google. Then things went wrong. I only got an error message, no page at all when going to my main url at one stage, so I deleted both of the plugins via FTP.

Even after I deleted Google Calendar, Form Builder had problems. I ultimately had to delete Form Builder, also

I think the coding is damaged overall but I don’t know CSS. The homepage only has my header, the item in the top center widget box, and the date icon. The rest of may home page is gone.

My blog url http://stubbornfacts1776.com

I have the Mandigo theme running the latest versions of everything.

I don’t install any plugins unless I find them on the WordPress.org 2.7.1 compatible list.

Anyway, I have NO idea how to fix this. I did export an XML file in case I have to start from scratch here.

Thanks for the help in advance.