widget non appearing in dashboard after vtiger 6 upgrade to vtiger 7.4

Column size is missing from vtiger_module_dashboard_widgets after upgrade from vtiger 6 to 7.4

for some reason the following migration script didn't work: (7.01->7.10) //START::Supporting to store dashboard size $dashboardWidgetColumns = $db->getColumnNames('vtiger_module_dashboard_widgets'); if (!in_array('size', $dashboardWidgetColumns)) { $db->pquery('ALTER TABLE vtiger_module_dashboard_widgets ADD COLUMN size VARCHAR(50)', array()); } //END::Supporting to store dashboard size