hello I get this error,can you help me ?

 public void GetInfo(Guid instance)
        {
            HarmonyEntities harmonyEntities = Database.GetEntities;


            GridType type = new GridType();
            List<GridType> typeList = new List<GridType>();


            var getInfo = from p in harmonyEntities.VDB_ASSET_INFORMATIONS
                          where p.GUID_ASSET.Equals(instance) && p.PRM1 == 1
                          select p;



//

I see this here error :

Can only specify query options (orderby, where, take, skip) after last navigation.

            var dat = getInfo.Where(p => p.GUID_TYPE.Equals(GridTypeFields.SequenceNumber) && p.PRM1.Equals(1)).Select(p => p.PRM0).Single().ToString();

        }