Fatal error: Uncaught Error: Class 'Net_HL7_Message' not found in C:\Web\htdocs\recta\customers\fundacionfarfalina\backend\class\Net\HL7\Messages\ACK.php:21 Stack trace: #0 {main} thrown in C:\Web\htdocs\recta\customers\fundacionfarfalina\backend\class\Net\HL7\Messages\ACK.php on line 21