Fatal error: Uncaught Error: Class "Facebook\GraphNodes\GraphNode" not found in /home/dario/Servidor/Sipemu/vendor/facebook/graph-sdk/src/Facebook/GraphNodes/GraphApplication.php:32 Stack trace: #0 {main} thrown in /home/dario/Servidor/Sipemu/vendor/facebook/graph-sdk/src/Facebook/GraphNodes/GraphApplication.php on line 32