QuickBook Integration with v2.30 null Entity

Hi, I just integrate the QuickBooks Plugin in the v2.30 and runs perfect. When I use the QWC I realized that some functions are not working correctly for example:

- in the sendRequestXML in QBConnector.cs ln 112

    -QBEntity entity = EngineContext.Current.Resolve<IQBService>().GetQBEntityForSynchronization();  

    This function always return null. I do some reaserch and find out this

    QBService.cs ln 250
    - public QBEntity GetQBEntityForSynchronization()
        {
            List<QBEntity> qbEntityCollection = GetAllQBEntities(null, SynStateEnum.Requested, 1);
            return (qbEntityCollection.Count == 0 ? null : qbEntityCollection.FirstOrDefault());
        }

     Here it suppose to retreive all the Entities wich are requierd for syncronization. Im new in MVC, can some one give some light in this issue.

Thanks in advance.
Jimmy

Did you run the sql script in the plugin folder?

Wich SQL script? I just download the plugin, place the code in the Plugin section and rebulid the App. That all it said in the documentation.

Where can i get this sql script with some guide?

Thanks for the Help!