Fatal error: Uncaught Exception: Wrong type NULL. It should be float for property unit_price in /www/nexosweb.com/htdocs/website/vendor/mercadopago/dx-php/src/MercadoPago/Entity.php:455 Stack trace: #0 /www/nexosweb.com/htdocs/website/vendor/mercadopago/dx-php/src/MercadoPago/Entity.php(364): MercadoPago\Entity->tryFormat(NULL, 'float', 'unit_price') #1 /www/nexosweb.com/htdocs/website/vendor/mercadopago/dx-php/src/MercadoPago/Entity.php(308): MercadoPago\Entity->_setValue('unit_price', NULL) #2 /www/nexosweb.com/htdocs/website/glosario_masterclass.php(79): MercadoPago\Entity->__set('unit_price', NULL) #3 {main} thrown in /www/nexosweb.com/htdocs/website/vendor/mercadopago/dx-php/src/MercadoPago/Entity.php on line 455