message: investigation of the delete error
diff: ClassImp(AliFemtoDreamEvent)
  AliFemtoDreamEvent::AliFemtoDreamEvent()
  -:fUtils(new AliAnalysisUtils())
  -,fEvtCuts(new AliEventCuts())
  +:fUtils(nullptr)
  +,fEvtCuts(nullptr)
  ,fEvtCutList(nullptr)
  ,fxVtx(0)
  ,fyVtx(0)
  @@ -93,9 +93,9 @@ AliFemtoDreamEvent::~AliFemtoDreamEvent() {
  if (fEvtCuts) {
  delete fEvtCuts;
  }
  -// if (fUtils) {
  -// delete fUtils;
  -// }
  + if (fUtils) {
  + delete fUtils;
  + }
  }
  AliFemtoDreamEvent &AliFemtoDreamEvent::operator=(const AliFemtoDreamEvent &obj){
  