Fatal error: Uncaught Error: Interface "rdfInterface\DefaultGraphInterface" not found in /home/www/aes-demo/api-8.0.0#316/vendor/sweetrdf/rdf-helpers/src/rdfHelpers/DefaultGraph.php:39 Stack trace: #0 {main} thrown in /home/www/aes-demo/api-8.0.0#316/vendor/sweetrdf/rdf-helpers/src/rdfHelpers/DefaultGraph.php on line 39