Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in /home1/aihika/public_html/kastabhanjan-traders/app/Models/PurchaseOrder.php:12 Stack trace: #0 {main} thrown in /home1/aihika/public_html/kastabhanjan-traders/app/Models/PurchaseOrder.php on line 12