Index: ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java
===================================================================
diff -u -r18575 -r18576
--- ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 18575)
+++ ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 18576)
@@ -4286,7 +4286,7 @@
 					while(rs.next()){
 						String taskId = rs.getString("taskId");
 						PackingTask urgentPackingTask = getPackingTaskByIdForUpdate_internal(taskId);
-						if(urgentPackingTask != null){
+						if(urgentPackingTask != null && (urgentPackingTask.getUrgentAmount() != null && urgentPackingTask.getUrgentAmount() > 0)){
 							urgentPackingTask.setUrgentAmount(urgentPackingTask.getUrgentAmount() - 1);
 							tousseInstance.setIsUrgentTousse(TousseDefinition.STR_YES);
 							urgentAmountJson.put("currentUrgentAmount", currentUrgentAmount - 1);