Blocks showing code on home page

I went in to remove some of the social icons on the home page and it turned from an HTML plain text editor to a WYSIWYG editor and all the code was gone. It just showed the bullets. When I saved it and went back to the home page all of the blocks on the home page changed to plain text showing all of the code you can see here siouxfallswoodworking.com. Is there a setting I have to do to fix this? Why can't I see the html editor when I edit the block?