Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\seeders\CustomFieldSeeder.php:12 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\seeders\CustomFieldSeeder.php on line 12