Fatal error: Uncaught mysqli_sql_exception: Duplicate column name 'contract_html' in C:\laragon\www\wms\run_migration_contract_html.php:6 Stack trace: #0 C:\laragon\www\wms\run_migration_contract_html.php(6): mysqli->query('ALTER TABLE emp...') #1 {main} thrown in C:\laragon\www\wms\run_migration_contract_html.php on line 6