Cartzilla- Dokan live chat duplicate checkbox issue

functions.php

function cartzilla_live_chat_setting() {
    if( class_exists( 'Dokan_Pro' ) ) {
        if( class_exists( 'WeDevs\DokanPro\Modules\LiveChat\VendorSettings' ) ) {
             cartzilla_remove_class_action( 'dokan_settings_form_bottom', 'WeDevs\DokanPro\Modules\LiveChat\VendorSettings', 'dokan_live_chat_seller_settings', 15 );
        }
    }
}

add_action('init', 'cartzilla_live_chat_setting');