fixed method set people admin

common/ASC.Core.Common/Data/DbAzService.cs

@@ -43,7 +43,7 @@ namespace ASC.Core.Data
         public DbAzService(DbContextManager<CoreDbContext> dbContextManager)
         {
             CoreDbContext = dbContextManager.Value;
-            FromAclToAzRecord = r => new AzRecord()
+            FromAclToAzRecord = r => new AzRecord
             {
                 ActionId = r.Action,
                 ObjectId = r.Object,
@@ -160,7 +160,7 @@ namespace ASC.Core.Data
             {
                 AceType = r.Reaction,
                 Action = r.ActionId,
-                Object = r.ObjectId,
+                Object = r.ObjectId ?? string.Empty,
                 Subject = r.SubjectId,
                 Tenant = r.Tenant
             };