Sidebars are random

1) Woo Commerce sidebar not working, but instead the default side bar is appearing there. 2) Why is 'archive' the side bar for the Posts page? 3) Why is the 'pages' side bar (which does work for all pages) the default? 4) The FB share widget only works in the archives sidebar, but not the pages sidebar. In order to NOT have a sidebar on my static home page I had to set theme options layout to "full page no sidebar". And then I had to set right-sidebar on each and every page. Hope this helps. The site in question is www.francodenicola.com