Update

app/src/main/java/com/cst/im30/activity/MainActivity.java

@@ -373,7 +373,7 @@ public class MainActivity extends AppCompatActivity implements CallableInterface
 
     @Override
     public void callBack(String source, Object object) {
-        // Logger.logD(source);
+        Logger.logD(source);
 
         String code = MainApplication.code;
         String status = MainApplication.status;
@@ -464,6 +464,7 @@ public class MainActivity extends AppCompatActivity implements CallableInterface
         // Payment Response
 
         else if (UploadTransactionSalePaymentService.SUCCESS.equalsIgnoreCase(source)) {
+            Logger.logD("Code:" + code + ":" + "Status:" + status);
             if (PaymentUtils.validateResponseCodeAndMessage(code, status)) {
                 PaymentService service = new PaymentService(this);
                 service.verifySuccess(MainApplication.currentCode);

app/src/main/java/com/cst/im30/service/UploadTransactionSalePaymentService.java

@@ -72,10 +72,12 @@ public class UploadTransactionSalePaymentService {
                 JSONObject responseJSON = null;
                 if (response.errorBody() != null) {
                     responseJSON = new JSONObject(response.errorBody().string());
+                    Logger.logAPI(responseJSON.toString());
                 }
                 callback.callBack(FAIL, responseJSON);
             } else {
                 JSONObject responseJSON = new JSONObject(response.body());
+                Logger.logAPI(responseJSON.toString());
                 callback.callBack(SUCCESS, responseJSON);
             }
         } catch (Exception e) {