Search Function Issue

Working on a site on THESIS called: https://www.dianasvideotutor.com

Having some problems getting the search function to operate properly. I am basically getting no results.

The “button” has no been programmed yet, but that shouldn’t be the problem as the search box is of the “type and hit enter” variety.

However when I hit enter, nothing seems to happen. Can some one take a look at this and tell me what I am doing wrong.

Your help is greatly appreciated. Code can be provided if needed.