Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/alterna/private_assets.alternalab.it/database/migrations/2018_04_16_133902_create_custom_field_default_values_table.php:7 Stack trace: #0 {main} thrown in /home/alterna/private_assets.alternalab.it/database/migrations/2018_04_16_133902_create_custom_field_default_values_table.php on line 7