Fatal error: Uncaught Error: Interface 'SimpleSAML\IdP\LogoutHandlerInterface' not found in /var/www/alldocs/home/bwilliams/webdev_orig/simplesamlphp_sp.disabled/lib/SimpleSAML/IdP/IFrameLogoutHandler.php:14 Stack trace: #0 {main} thrown in /var/www/alldocs/home/bwilliams/webdev_orig/simplesamlphp_sp.disabled/lib/SimpleSAML/IdP/IFrameLogoutHandler.php on line 14