I noticed in installation Step 2, box 3 it shows
<?php if( function_exists( 'mfg_search_inputs' ) ) {
mfg_search_inputs(); }?>
This should be
<?php if( function_exists('mfg_show_results') ) {
mfg_show_results(); }?>
On the website, Windy Road, it was fixed, but on the installation notes for WP plugins it was not.