Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/clademy/lms.clademy.com/database/migrations/2020_04_23_124301_add_billable_column_tasks_table.php:7 Stack trace: #0 {main} thrown in /home/clademy/lms.clademy.com/database/migrations/2020_04_23_124301_add_billable_column_tasks_table.php on line 7