diff --git a/APT.MicroApi/APT.PP.WebApi/Controllers/Api/SKController.cs b/APT.MicroApi/APT.PP.WebApi/Controllers/Api/SKController.cs
index 216db68..86406b0 100644
--- a/APT.MicroApi/APT.PP.WebApi/Controllers/Api/SKController.cs
+++ b/APT.MicroApi/APT.PP.WebApi/Controllers/Api/SKController.cs
@@ -6096,7 +6096,7 @@ namespace APT.PP.WebApi.Controllers.Api
                     {
                         foreach (var item in contentDeparts)
                         {
-                            var departUsers = contentDepartUsers.Where(t => t.ENTERPRISE_LIBRARY_DETAIL_CONTENT_DEPART_ID == item.ID).Select(m => m.USER_ID).ToList();
+                            var departUsers = contentDepartUsers.Where(t => t.ENTERPRISE_LIBRARY_DETAIL_CONTENT_DEPART_ID == item.ID && t.USER_ID!=null).Select(m => m.USER_ID).ToList();
                             var departUserIds = string.Join(",", departUsers);
                             var conFirst = contents.FirstOrDefault(t => t.ID == item.ENTERPRISE_LIBRARY_DETAIL_CONTENT_ID);
                             var detailFirst = libraryDetails.FirstOrDefault(t => t.ID == conFirst?.ENTERPRISE_LIBRARY_DETAIL_ID);
@@ -6218,7 +6218,7 @@ namespace APT.PP.WebApi.Controllers.Api
                                 }
                                 listNew.details = listDetail.GroupBy(n => new { n.RISK_AREA_ID, n.RISK_NAME, n.CHECK_CONTENTS_ID }).Select(g => g.FirstOrDefault()).OrderBy(t => t.RISK_AREA_NAME).ThenBy(m => m.RISK_NAME).ToList();
                             }
-                            var depatUserIds = conDepartlist.Where(t => t.DEPARTMENT_ID == item.Key.DEPARTMENT_ID && t.CHECK_TYPE_ID == item.Key.CHECK_TYPE_ID && t.CHECK_TYPE == item.Key.CHECK_TYPE && t.CHECK_CYCLE == item.Key.CHECK_CYCLE && t.PRODUCTION_UNIT_ID == item.Key.PRODUCTION_UNIT_ID && t.POST_NAME == item.Key.POST_NAME && t.POST_ID == item.Key.POST_ID).Select(m => m.USER_ID).ToList();
+                            var depatUserIds = conDepartlist.Where(t => t.DEPARTMENT_ID == item.Key.DEPARTMENT_ID && t.CHECK_TYPE_ID == item.Key.CHECK_TYPE_ID && t.CHECK_TYPE == item.Key.CHECK_TYPE && t.CHECK_CYCLE == item.Key.CHECK_CYCLE && t.PRODUCTION_UNIT_ID == item.Key.PRODUCTION_UNIT_ID && t.POST_NAME == item.Key.POST_NAME && t.POST_ID == item.Key.POST_ID && t.USER_ID != null).Select(m => m.USER_ID).ToList();
                             var depatUserIdList = new List<string>();
                             if (depatUserIds != null && depatUserIds.Any())
                             {