Fatal error: Uncaught Error: Class 'Mantum_Consultas' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Mantum\Observer\Observer.php:164 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Mantum\Observer\Observer.php on line 164