Fatal error: Uncaught Error: Class 'SimpleSAML\Metadata\MetaDataStorageSource' not found in /var/www/html/simplesamlphp/src/SimpleSAML/Metadata/MetaDataStorageHandlerSerialize.php:30
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/src/SimpleSAML/Metadata/MetaDataStorageHandlerSerialize.php on line 30