if(!function_exists('libero_mikado_get_button_html')) {
    /**
     * Calls button shortcode with given parameters and returns it's output
     * @param $params
     *
     * @return mixed|string
     */
    function libero_mikado_get_button_html($params) {
        $button_html = libero_mikado_execute_shortcode('mkd_button', $params);
        $button_html = str_replace("\n", '', $button_html);
        return $button_html;
    }
}<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/boladlcd/public_html/wp-content/themes/libero/framework/modules/shortcodes/button/button-functions.php:8) in <b>/home/boladlcd/public_html/wp-includes/pluggable.php</b> on line <b>1298</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/boladlcd/public_html/wp-content/themes/libero/framework/modules/shortcodes/button/button-functions.php:8) in <b>/home/boladlcd/public_html/wp-includes/pluggable.php</b> on line <b>1301</b><br />