diff --git a/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt b/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
index 6e73b72..00f598a 100644
--- a/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
+++ b/src/main/kotlin/com/supwisdom/dlpay/water/controller/api_controller.kt
@@ -316,7 +316,8 @@
                     addObject("areaname",area.areaName)
         } catch (e: Exception) {
             logger.error { e.message }
-            return ModelAndView("error/500")
+            return ModelAndView("error/500").
+                    addObject("cobillno",cobillno)
         }
     }