Fatal error: Uncaught Error: Class "Yajra\DataTables\DataTableAbstract" not found in E:\Ampps\www\CAS\vendor\yajra\laravel-datatables-oracle\src\QueryDataTable.php:15 Stack trace: #0 {main} thrown in E:\Ampps\www\CAS\vendor\yajra\laravel-datatables-oracle\src\QueryDataTable.php on line 15