Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/sourceex/public_html/pm/database/migrations/2020_05_19_114539_add_custom_field_groups.php:8 Stack trace: #0 {main} thrown in /home/sourceex/public_html/pm/database/migrations/2020_05_19_114539_add_custom_field_groups.php on line 8