Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in /var/www/html/repo/school-infix-v6.0/database/seeders/sm_student_certificatesSeeder.php:7 Stack trace: #0 {main} thrown in /var/www/html/repo/school-infix-v6.0/database/seeders/sm_student_certificatesSeeder.php on line 7