diff --git a/SGGL/BLL/HSSE/SitePerson/PersonInOutService.cs b/SGGL/BLL/HSSE/SitePerson/PersonInOutService.cs
index 7c8e0d29..ab60031d 100644
--- a/SGGL/BLL/HSSE/SitePerson/PersonInOutService.cs
+++ b/SGGL/BLL/HSSE/SitePerson/PersonInOutService.cs
@@ -398,7 +398,7 @@ namespace BLL
                 foreach (var newPersonInOut in newPersonInOutList)
                 {
                     var getPUnit = getPUnitS.FirstOrDefault(x => x.UnitId == newPersonInOut.UnitId);
-                    if (getPUnit.UnitType != Const.ProjectUnitType_3 && getPUnit.UnitType != Const.ProjectUnitType_4 && getPUnit.IsSynchro == true)
+                    if (getPUnit!=null&&getPUnit.UnitType != Const.ProjectUnitType_3 && getPUnit.UnitType != Const.ProjectUnitType_4 && getPUnit.IsSynchro == true)
                     {
                         if (getRealNameP != null && newPersonInOut.ChangeTime.HasValue)
                         {