title: Fatal error: Call to undefined function apply_filters() in /public_html/wp-includes/load.php on line 317
body: <p>I tried to update my wordpress installation using auto update feature. After update the entire site is down. Checking the log file I have this error:<br>
  <code>Fatal error: Call to undefined function apply_filters() in /public_html/wp-includes/load.php on line 317</code><br>
  I found this github issue. But they refer to solving the issue for installation that uses <code>wp-cli</code>. Any help would be appreciated.<br>
  <a href="https://github.com/wp-cli/wp-cli/issues/2953" rel="noreferrer">https://github.com/wp-cli/wp-cli/issues/2953</a></p>