Fatal error: Uncaught Error: Class 'SimpleSAML\SessionHandler' not found in /var/www/html/simplesamlphp/src/SimpleSAML/SessionHandlerPHP.php:19
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/src/SimpleSAML/SessionHandlerPHP.php on line 19