Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/easyaabc/cl-insights.easyaab.com/database/migrations/2021_10_26_070345_create_sites_clinical_studies_table.php:7 Stack trace: #0 {main} thrown in /home/easyaabc/cl-insights.easyaab.com/database/migrations/2021_10_26_070345_create_sites_clinical_studies_table.php on line 7