Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in /home/tlomjgm/candidature/www/vendor/backpack/crud/tests/config/database/seeds/UsersTableSeeder.php:9 Stack trace: #0 {main} thrown in /home/tlomjgm/candidature/www/vendor/backpack/crud/tests/config/database/seeds/UsersTableSeeder.php on line 9