Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in C:\xampp\htdocs\r10ca\vendor\yajra\laravel-datatables-oracle\tests\Models\Heart.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10ca\vendor\yajra\laravel-datatables-oracle\tests\Models\Heart.php on line 8