Fatal error: Uncaught Error: Class 'SAML2\Utilities\ArrayCollection' not found in /var/www/alldocs/home/cmckay/cms_static/simplesamlphp_sp/vendor/simplesamlphp/saml2/src/SAML2/Certificate/KeyCollection.php:14 Stack trace: #0 {main} thrown in /var/www/alldocs/home/cmckay/cms_static/simplesamlphp_sp/vendor/simplesamlphp/saml2/src/SAML2/Certificate/KeyCollection.php on line 14