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