Fatal error: Uncaught Error: Class 'SAML2\Compat\AbstractContainer' not found in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/simplesamlphp/saml2/src/SAML2/Compat/MockContainer.php:13 Stack trace: #0 {main} thrown in /var/www/alldocs/home/sdoehner/webtest/simplesamlphp_idp/vendor/simplesamlphp/saml2/src/SAML2/Compat/MockContainer.php on line 13