Ticket ## Fix UTS

Author: habarthierry-hue

src/CaseManagement.CMMN/CasePlan/EventHandlers/CasePlanEventHandler.cs

@@ -39,6 +39,11 @@ public async Task Handle(CaseFilePublishedEvent @event, CancellationToken cancel
         public async Task Handle(CasePlanInstanceCreatedEvent message, CancellationToken token)
         {
             var casePlan = await _casePlanQueryRepository.Get(message.CasePlanId, token);
+            if (casePlan == null)
+            {
+                return;
+            }
+
             casePlan.IncrementInstance();
             await _casePlanCommandRepository.Update(casePlan, token);
             await _casePlanCommandRepository.SaveChanges(token);