Fatal error: Uncaught Error: Undefined constant "MERCADO_PAGO_PUBLIEY" in /home/ramo24na/public_html/2024/application/config/constants.php:112 Stack trace: #0 /home/ramo24na/public_html/2024/system/core/CodeIgniter.php(73): require_once() #1 /home/ramo24na/public_html/2024/index.php(288): require_once('/home/ramo24na/...') #2 {main} thrown in /home/ramo24na/public_html/2024/application/config/constants.php on line 112