Fatal error: Uncaught Error: Call to undefined function env() in /home/qrapp/public_html/vendor/santigraviano/laravel-mercadopago/src/config/mercadopago.php:4 Stack trace: #0 {main} thrown in /home/qrapp/public_html/vendor/santigraviano/laravel-mercadopago/src/config/mercadopago.php on line 4