Fatal error: Uncaught Error: Class 'Mantum_Model' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\aplicaciones\modulos\cloud\modelo\DetalleFactura.php:9 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\aplicaciones\modulos\cloud\modelo\DetalleFactura.php on line 9