Usability testing

The site is in the development phase on this I have no right to disclose the name of the site
The search button does not work in the top panel when searching for results.
Steps of reproduction:
1 Go to the site
Pay attention to the top panel.
Use the “search” button
The expected result:If this topic is on the site goes to its link.If it is not, it will notify you: "in the search has not been found the section on this request".
The search button does not work, and when you press the "enter" key, it reboot the page.