Error Code: 6000
Error Message: Invalid pointer
Invalid pointer   [6000:0x80004003] (Invalid pointer  )

------------ Technical Details: ------------

LF.exe (10.2.0.839):
    Call Stack: (Exception)
        CAccessRightsTab::AddAccessControlEntry
        CAccessRightsTab::OnBnClickedBtnAddtrustee
    Call Stack: (Current)
        CAccessRightsTab::OnBnClickedBtnAddtrustee
    Additional Details:
        Exception: 0x80004003 [6000] (Invalid pointer) (CAccessRightsTab::OnBnClickedBtnAddtrustee at AccessRightsTab.cpp:901)
    Call History:
        CEffectiveRightsTab::UpdateDisplay
        CTrusteeListCtrl::InitializeCollection
        CTrusteeListCtrl::InitializeCollection
        CTrusteeListCtrl::FillList
        CChooseTrusteeDialog::OnInitDialog
        CChooseTrusteeDialog::OnBnClickedOk
        CAccessRightsTab::OnBnClickedBtnAddtrustee
         CAccessRightsTab::AddAccessControlEntry