Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/gbc4/public_html/erp/Modules/Spreadsheet/Database/Migrations/2020_12_23_153255_create_spreadsheets_table.php:7 Stack trace: #0 {main} thrown in /home/gbc4/public_html/erp/Modules/Spreadsheet/Database/Migrations/2020_12_23_153255_create_spreadsheets_table.php on line 7