Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\new_saas\backend\database\migrations\2026_04_13_100003_fix_subscriptions_plan_cascade.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\new_saas\backend\database\migrations\2026_04_13_100003_fix_subscriptions_plan_cascade.php on line 7