Page generates under front page

Hello again, url to my site is: http://stavebnifirmaricany.cz/ And I am facing an issue where I have content under the main page. It just generates page under the front page. more info in screenshots. if u cant access it but I've made a few screenshots: http://prntscr.com/un2hrt more info here: http://prntscr.com/un2jwx thanks boza thanks for any help. boza