fatal error setup

WC: 2.2.10
WP: 3.9.2
PHP: 7.0.31
MySQL: 5.7.16
after activate this error
Fatal error: Uncaught Error: Call to undefined method WC_AJAX::get_endpoint() in /www/wp-content/plugins/ajax-search-for-woocommerce/includes/Scripts.php:43 Stack trace: #0 /www/wp-includes/plugin.php(470): DgoraWcas\Scripts->jsScripts(”) #1 /www/wp-includes/script-loader.php(918): do_action(‘wp_enqueue_scri…’) #2 /www/wp-includes/plugin.php(470): wp_enqueue_scripts(”) #3 /www/wp-includes/general-template.php(2030): do_action(‘wp_head’) #4 /www/wp-content/themes/barberry/header.php(61): wp_head() #5 /www/wp-includes/template.php(501): require_once(‘/home/arovana/b…’) #6 /www/wp-includes/template.php(477): load_template(‘/home/arovana/b…’, true) #7 /www/wp-includes/general-template.php(47): locate_template(Array, true) #8 /www/wp- in /www/wp-content/plugins/ajax-search-for-woocommerce/includes/Scripts.php on line 43