please add this given code in your wplms-customizer.php file in wplms customizer plugin :
add_action('init',function(){
$actions = WPLMS_Actions::init();
remove_action('wp_footer',array($actions,'search'));
});
add_action('wp_footer','dir_cc_search');
function dir_cc_search(){
$pages = get_option('bp-pages');
$course_dir = isset($pages['course'])?$pages['course']:0;
if(function_exists('icl_object_id')){
$course_dir = icl_object_id($course_dir, 'page', true);
}
?>
<div id="searchdiv">
<form role="search" method="get" id="searchform" action="<?php echo get_permalink($course_dir); ?>">
<input type="text" value="<?php the_search_query(); ?>" name="s" id="s" placeholder="<?php _e('Hit enter to search...','vibe'); ?>" />
</form>
<span></span>
</div>
<?php
}
