server/AyaNova/Controllers/CustomerNotifySubscriptionController.cs

@@ -150,7 +150,7 @@ namespace AyaNova.Api.Controllers
             using (var cmd = ct.Database.GetDbConnection().CreateCommand())
             {
                 await ct.Database.OpenConnectionAsync();
-                cmd.CommandText = $"select id, name, emailaddress from acustomer where active=true {custTagsWhere} order by name";
+                cmd.CommandText = $"select id, name, COALESCE(emailaddress,'') from acustomer where active=true {custTagsWhere} order by name";
                 using (var dr = await cmd.ExecuteReaderAsync())
                 {
                     while (dr.Read())