Fatal error: Uncaught Error: Interface 'Magium\Configuration\Source\SourceInterface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\magium\configuration-manager\lib\Source\Switches\OnOff.php:7 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\magium\configuration-manager\lib\Source\Switches\OnOff.php on line 7