Fatal error: Uncaught Error: Class "Yajra\DataTables\DataTableAbstract" not found in /home/activa/demo.egycel.com/vendor/yajra/laravel-datatables-oracle/src/QueryDataTable.php:17 Stack trace: #0 {main} thrown in /home/activa/demo.egycel.com/vendor/yajra/laravel-datatables-oracle/src/QueryDataTable.php on line 17