Fatal error: Uncaught Error: Class 'ResponseData' not found in /home/opcon/src/dat/lib/jp/co/ks/merchanttool/connectmodule/entity/PaymentResponseDataImpl.php:39 Stack trace: #0 {main} thrown in /home/opcon/src/dat/lib/jp/co/ks/merchanttool/connectmodule/entity/PaymentResponseDataImpl.php on line 39