Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/previewpanel/public_html/epos/database/migrations/2021_02_11_172217_add_indexing_for_multiple_columns.php:7 Stack trace: #0 {main} thrown in /home/previewpanel/public_html/epos/database/migrations/2021_02_11_172217_add_indexing_for_multiple_columns.php on line 7