Fatal error: Uncaught Error: Class 'Twig\Loader\FilesystemLoader' not found in /var/www/alldocs/home/rprather/webdev/cms_static/simplesamlphp_sp/lib/SimpleSAML/XHTML/TemplateLoader.php:17 Stack trace: #0 {main} thrown in /var/www/alldocs/home/rprather/webdev/cms_static/simplesamlphp_sp/lib/SimpleSAML/XHTML/TemplateLoader.php on line 17