Fatal error: Uncaught Error: Class 'Symfony\Bundle\FrameworkBundle\Secrets\AbstractVault' not found in /var/www/html/simplesamlphp/vendor/symfony/framework-bundle/Secrets/SodiumVault.php:24
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/symfony/framework-bundle/Secrets/SodiumVault.php on line 24