add_action('wp_head', function(){echo '';}, 1);<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function mfn_opts_get() in /home/ziremx/focuscreditaria.com.mx/wp-content/themes/betheme/404.php:10
Stack trace:
#0 /home/ziremx/focuscreditaria.com.mx/wp-includes/template-loader.php(132): include()
#1 /home/ziremx/focuscreditaria.com.mx/wp-blog-header.php(19): require_once('/home/ziremx/fo...')
#2 /home/ziremx/focuscreditaria.com.mx/index.php(17): require('/home/ziremx/fo...')
#3 {main}
  thrown in <b>/home/ziremx/focuscreditaria.com.mx/wp-content/themes/betheme/404.php</b> on line <b>10</b><br />