Trying to export a folder to a briefcase and getting the following:

Error Code: 9036
Error Message: The briefcase failed to export properly.
Unknown internal error. [9036]

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

LFSO:
    Call Stack: (Exception)
        ILFReadStreamImpl::ReadData
    Additional Details:
        HRESULT: 0xc004234c (ILFReadStreamImpl::ReadData, ILFReadStreamImpl.cpp:62)
         (LFSO/9.1.1.546)
LF.exe (9.1.1.548):
    Call Stack: (Current)
        CExportBriefcaseDlg::Export
        Lf_ExportBriefcase
        CFolderTreeView::OnFileExportBriefcase
    Additional Details:
        Exception: 0xc004234c [9036] (Unknown internal error.) (CExportBriefcaseDlg::Export at exportbriefcasedlg.cpp:602)
    Call History:
          GetOptionString ([Settings]ExportBriefcaseVersionHist)
           CAttachedRepository::GetProfileValue
          GetOptionString ([Settings]ExportBriefcaseSignatures)
           CAttachedRepository::GetProfileValue
          GetOptionString ([HiddenDialogs]ExportInvalidSignatures)
           CAttachedRepository::GetProfileValue
            CAttachedRepository::LoadAttributePrefix
          CExportBriefcaseDlg::Export