RCDC 8.0 unhandled exception when I design the column

Hello this is the problem I encountered in RCDC 8.0 Connect Edition it is an error when I design the column only but all the structural members has no problem, it gives unhandled exception when I click autodesign and when i Click the design calculations.

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentException: Item has already been added. Key in dictionary: '1'  Key being added: '1'
   at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
   at ColumnDesignTool.ScColumnWalldMan.QComputationForSlendernessACI()
   at ColumnDesignTool.ColDesignParameters.GetDesignCalcDataR0()
   at ColumnDesignTool.MDIParentmain.DesignCalculationsToolStripMenuItem_Click(Object sender, EventArgs e)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4341.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
RCDC
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/RCDC.exe
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 10.0.0.0
    Win32 Version: 14.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4300.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4341.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4341.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4190.0 built by: NET48REL1LAST_B
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Runtime.Remoting
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Remoting/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
SandDock
    Assembly Version: 3.0.6.1
    Win32 Version: 3.0.6.1
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SandDock.DLL
----------------------------------------
SCMap
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCMap.DLL
----------------------------------------
RCDCIO
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/RCDCIO.DLL
----------------------------------------
System.Web
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4330.0 built by: NET48REL1LAST_B
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.Web/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Web.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
Automation
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/Automation.DLL
----------------------------------------
SCDBDesign
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCDBDesign.DLL
----------------------------------------
Bentley.Connect.Client.API
    Assembly Version: 1.0.0.0
    Win32 Version: 10.00.19.31
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/Bentley.Connect.Client.API.DLL
----------------------------------------
Bentley.Connect.Client.Service.Interface
    Assembly Version: 1.0.0.0
    Win32 Version: 10.00.19.31
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/Bentley.Connect.Client.Service.Interface.DLL
----------------------------------------
System.ServiceModel
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceModel/v4.0_4.0.0.0__b77a5c561934e089/System.ServiceModel.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
SMDiagnostics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/SMDiagnostics/v4.0_4.0.0.0__b77a5c561934e089/SMDiagnostics.dll
----------------------------------------
System.ServiceModel.Internals
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceModel.Internals/v4.0_4.0.0.0__31bf3856ad364e35/System.ServiceModel.Internals.dll
----------------------------------------
Microsoft.VisualStudio.Diagnostics.ServiceModelSink
    Assembly Version: 4.0.0.0
    Win32 Version: 10.0.30319.1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Diagnostics.ServiceModelSink/v4.0_4.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Diagnostics.ServiceModelSink.dll
----------------------------------------
Bentley.Connect.Advisor.Api
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.283
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/Bentley.Connect.Advisor.Api.DLL
----------------------------------------
Bentley.Connect.Advisor.ApiFactory
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.130
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/Bentley.Connect.Advisor.ApiFactory.dll
----------------------------------------
Bentley.Connect.Advisor.Logging
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.130
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/Bentley.Connect.Advisor.Logging.DLL
----------------------------------------
log4net
    Assembly Version: 1.2.15.0
    Win32 Version: 1.2.15.0
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/log4net.DLL
----------------------------------------
Bentley.Connect.Advisor.OopWrapper
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.130
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/Bentley.Connect.Advisor.OopWrapper.dll
----------------------------------------
Bentley.Connect.Advisor.Api2
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.130
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/Bentley.Connect.Advisor.Api2.DLL
----------------------------------------
Bentley.Connect.Advisor.ServiceContract
    Assembly Version: 1.0.0.0
    Win32 Version: 10.01.00.130
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECT%20Advisor/Bentley.Connect.Advisor.ServiceContract.DLL
----------------------------------------
ScIO
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/ScIO.DLL
----------------------------------------
System.Data.SQLite
    Assembly Version: 1.0.110.0
    Win32 Version: 1.0.110.0
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/System.Data.SQLite.DLL
----------------------------------------
System.Transactions
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
SCMath
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCMath.DLL
----------------------------------------
System.EnterpriseServices
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
StyleManager
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/StyleManager.DLL
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
SCModel
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCModel.DLL
----------------------------------------
ColumnDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/ColumnDesignTool.EXE
----------------------------------------
WaterTankDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/WaterTankDesignTool.EXE
----------------------------------------
PileCapDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/PileCapDesignTool.EXE
----------------------------------------
FootingDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/FootingDesignTool.EXE
----------------------------------------
SlabDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SlabDesignTool.EXE
----------------------------------------
BeamDesignTool
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/BeamDesignTool.EXE
----------------------------------------
bentley.managed.entliclib
    Assembly Version: 1.0.0.0
    Win32 Version: 11.00.08.10
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/bentley.managed.entliclib.DLL
----------------------------------------
Bentley.Licensing.Client.API
    Assembly Version: 1.0.0.0
    Win32 Version: 11.00.01.11
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Bentley.Licensing.Client.API.dll
----------------------------------------
Bentley.Licensing.ServiceInterface
    Assembly Version: 1.0.0.0
    Win32 Version: 11.00.01.11
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Bentley.Licensing.ServiceInterface.DLL
----------------------------------------
Common.Logging
    Assembly Version: 3.3.1.0
    Win32 Version: 3.3.1.0
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Common.Logging.DLL
----------------------------------------
Common.Logging.Core
    Assembly Version: 3.3.1.0
    Win32 Version: 3.3.1.0
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Common.Logging.Core.DLL
----------------------------------------
Bentley.Licensing.Common
    Assembly Version: 1.0.0.0
    Win32 Version: 11.00.01.11
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Bentley.Licensing.Common.DLL
----------------------------------------
Bentley.Cloud.ThickClient
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.51
    CodeBase: file:///C:/Program%20Files/Common%20Files/Bentley%20Shared/CONNECTION%20Client/LicenseService/Bentley.Cloud.ThickClient.DLL
----------------------------------------
WW
    Assembly Version: 2.0.6.4
    Win32 Version: 2.0.6.4
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/WW.DLL
----------------------------------------
BBSElements
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/BBSElements.DLL
----------------------------------------
WW.Cad
    Assembly Version: 2.0.23.10
    Win32 Version: 2.0.23.10
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/WW.Cad.DLL
----------------------------------------
System.Security
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4261.0 built by: NET48REL1LAST_B
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Security/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Security.dll
----------------------------------------
WW.License
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/WW.License.DLL
----------------------------------------
ScdMan
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/ScdMan.DLL
----------------------------------------
SCDwg
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCDwg.DLL
----------------------------------------
DXFViewer
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/DXFViewer.DLL
----------------------------------------
LoadComb
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/LoadComb.DLL
----------------------------------------
ObjectStructures
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/ObjectStructures.DLL
----------------------------------------
SCControls
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/SCControls.DLL
----------------------------------------
scisde
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/scisde.DLL
----------------------------------------
ReportGenerator
    Assembly Version: 1.0.0.0
    Win32 Version: 09.04.00.128
    CodeBase: file:///C:/Program%20Files/Bentley/Engineering/RCDC%20CONNECT%20Edition/ReportGenerator.DLL
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
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