Serious problem with upgrade

I posted this before but may have not posted in the correct place. My apologies for the duplication. I just upgraded to WP 4.5 and latest Catch Box. My pages have no sidebar set up (single column) but all of a sudden sidebar items including Sidebar Widget Area, Archives and Search are appearing below the main content area. If I switch to two column they move to the sidebar. However, I don’t want them at all and they were not there before the upgrades. There are no widgets set up in Widgets. How can I eliminate these sidebar items from the pages? The site is jvfd-ems.org.