Index: ssts-recyclingapplication/src/main/java/com/forgon/disinfectsystem/recyclingapplication/service/InvoicePlanManagerImpl.java
===================================================================
diff -u -r30165 -r30225
--- ssts-recyclingapplication/src/main/java/com/forgon/disinfectsystem/recyclingapplication/service/InvoicePlanManagerImpl.java	(.../InvoicePlanManagerImpl.java)	(revision 30165)
+++ ssts-recyclingapplication/src/main/java/com/forgon/disinfectsystem/recyclingapplication/service/InvoicePlanManagerImpl.java	(.../InvoicePlanManagerImpl.java)	(revision 30225)
@@ -1753,7 +1753,7 @@
 		String extraOrder = "";
 		if(enableUrgentFunction){
 			extraJoin = " left join fetch po.urgentLevel ";
-			extraOrder = " po.urgentLevel.grade desc,";
+			extraOrder = " case when po.urgentLevel is null then 0 else po.urgentLevel.grade end desc,";
 		}
 		String queryColumnSql = " select po from InvoicePlan po " + extraJoin;
 		String whereSql = " where po.committedStatus=1 ";