Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/kartulirest/public_html/kartulirest.de/database/migrations/2026_05_19_140000_make_campaign_registration_email_nullable.php:7 Stack trace: #0 {main} thrown in /home/kartulirest/public_html/kartulirest.de/database/migrations/2026_05_19_140000_make_campaign_registration_email_nullable.php on line 7