Fatal error: Uncaught Error: Class 'Mantum_Controller' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\aplicaciones\modulos\planesmantenimiento\controladores\PlanController.php:15
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\aplicaciones\modulos\planesmantenimiento\controladores\PlanController.php on line 15