Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in /home/urbanrid/posdemo.prodigysystech.com/app/Models/PurchaseInvoice.php:8 Stack trace: #0 {main} thrown in /home/urbanrid/posdemo.prodigysystech.com/app/Models/PurchaseInvoice.php on line 8