Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\database\migrations\2022_08_22_111501_add_running_pid_to_campaigns_table.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\database\migrations\2022_08_22_111501_add_running_pid_to_campaigns_table.php on line 7