Fatal error: Uncaught Error: Class "Facebook\Helpers\FacebookSignedRequestFromInputHelper" not found in C:\laragon\www\om-marketing\vendor\facebook\graph-sdk\src\Facebook\Helpers\FacebookCanvasHelper.php:31 Stack trace: #0 {main} thrown in C:\laragon\www\om-marketing\vendor\facebook\graph-sdk\src\Facebook\Helpers\FacebookCanvasHelper.php on line 31