Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in /home/ovidiant/public_html/aaaaz/ovidiantech/packages/Webkul/Sales/src/Models/Invoice.php:16 Stack trace: #0 {main} thrown in /home/ovidiant/public_html/aaaaz/ovidiantech/packages/Webkul/Sales/src/Models/Invoice.php on line 16