Theme acting on its own?

Hi guys!

I’m moving my Syndey-based page from one WP installation to the other. The new one is most up-to-date Sydney version, the old one wasn’t updated, so it might be one or two versions old.

The old page worked very well. After moving it to new location I discovered that there was an element added, that is completely unwanted and unnecessary. Right below my full-page slider a row with the text “Start” showed up. I didn’t want it, I didn’t make it. Why is it there? How can I get rid of it?

The old site is prokreacja.com
The new one is http://serwer1769916.home.pl/autoinstalator/wordpress/

In page editor my page starts with NASZA OFERTA (services) part. There is nothing before that, so Sydney must have added it on its own…

UPDATE:
I figured out the text showing up there is the title of my page. How can I get rid of it?

case closed