How to solve this exception system.invalidcastexception: 'unable to cast object of type ?

#region #Usings
using System;
using System.Windows.Forms;
using DevExpress.Data;
using DevExpress.DataAccess.ObjectBinding;
using DevExpress.DataAccess.Sql;
using DevExpress.XtraReports.UI;
using MrSales.MrSLanguages;
using MrSales.MrSModels.dataObjects;
// ...
#endregion #Usings

namespace MrSales.MrSModels.TablesTranslations.TablesTranslations.GeneralReportTranslation
{

    #region #SqlDataSource
    public class GeneralReportTranslation : ObjectDataSource, IDisplayNameProvider
    {
        public GeneralReportTranslation()
        {
        }

        XtraReport report = null;
        public GeneralReportTranslation(ObjectDataSource copyFrom,  XtraReport _report)
        {
            this.LoadFromXml(copyFrom.SaveToXml());
            report = _report;
        }

        // ...
        string IDisplayNameProvider.GetDataSourceDisplayName()
        {
            // Substitute the default datasource display name
            // with a custom one.
            return report.DisplayName;
        }

        string IDisplayNameProvider.GetFieldDisplayName(string[] fieldAccessors)
        {
            // Get a field name form the data member's name. 
            string fieldName = fieldAccessors[fieldAccessors.Length - 1];
            return ChangeNames(fieldName);
        }
        public string ChangeNames(string name)
        {
            string result = string.Empty;
            if (name == "people_data")
            {
                result = strings.PEOPLE_DATA;
            }
            else if (name == "Unit")
            {
                result = strings.UNIT;
            }
            else if (name == "Tax")
            {
                result = strings.TAX_NUM;
            }
            else
            {
                try
                {
                    result = strings.ResourceManager.GetString(name, strings.Culture);
                }
                catch
                {
                    return null;
                }
                
            }
            return result;
        }
        // ...
    }
    #endregion #SqlDataSource
}

private void loadReportDesign( XtraReport report )
{
	report.DataSource = new GeneralReportTranslation((ObjectDataSource)report.DataSource, report);
	reportDesigner1.OpenReport(report);

}

XtraReport report = documentViewer1.DocumentSource as XtraReport;
MrSViews.CompanyConfig.ReportDesigner frm = new MrSViews.CompanyConfig.ReportDesigner(report);
frm.TopMost = false;
frm.Show();

System.InvalidCastException: 'Unable to cast object of type 'System.Collections.Generic.List`1[MrSales.MrSModels.dataObjects.CLSPeopleHistory]' to type 'DevExpress.DataAccess.ObjectBinding.ObjectDataSource'.'

<pre>report.DataSource = new GeneralReportTranslation((ObjectDataSource)report.DataSource, report);

CustomerMove report_CustomerMove = new CustomerMove();
                report_CustomerMove.DataSource = new GeneralReportTranslation((ObjectDataSource)report_CustomerMove.DataSource, report);
                reportDesigner1.OpenReport(report_CustomerMove);