[{"Expires":1,"Discard":false,"Value":"<br />
<b>Warning</b>:  Undefined array key "z" in <b>/var/www/html/app/bootstrap.php</b> on line <b>1</b><br />
"}]<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;Magento\Framework\App\Bootstrap&quot; not found in /var/www/html/pub/index.php:27
Stack trace:
#0 {main}
  thrown in <b>/var/www/html/pub/index.php</b> on line <b>27</b><br />