Marlem on "[Theme: Hueman] Search box stopped working properly after the ajax website"

Hi, I have the hueman theme ajax created with the plugin "zajax" but now works the searchbox not more if you click it then flashes the searchbox 3 times and there no search results more loading, maybe someone knows what code I should put in the zajax plugin so the searchbox works properly.
Website is https://freeandeasyband.nl