I have had to reinstall My_eGallery on my girl friends site and there is a little problem with the display Category page it dose'nt show the Thumbnails pics it shows a ugly pic like this

and there is thisat the bottom of the page
Fatal error: Call to undefined function: search_form() in /home/helpin00/public_html/eastenders/modules/My_eGallery/public/displayCategory.php on line 578

i have tryed going to that line but there is only 459 lines