Fatal error: Uncaught Error: Class 'core_payment\gateway' not found in /home/junior47895/public_html/aulavirtual/AulaVirtual_22Apr/payment/gateway/paypal/classes/gateway.php:33 Stack trace: #0 {main} thrown in /home/junior47895/public_html/aulavirtual/AulaVirtual_22Apr/payment/gateway/paypal/classes/gateway.php on line 33