Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\migrations\2023_03_21_215218_update_slack_setting.php:8 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\migrations\2023_03_21_215218_update_slack_setting.php on line 8