ASP.NET error using FreeTextForm

[IkBenHet]

This error below happens sometimes when accessing the page. When you
refresh the page it is ok. Please help.

Server Error in '/' Application.
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Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not
set to an instance of an object.

Source Error:

Line 129:End If
Line 130:%>
Line 131:<form runat="server">
Line 132:<table width="880" bgcolor="#FFFFFF" bordercolor="#B1B9DD"
cellpadding="3" cellspacing="0">


Source File: d:\Inetpub\wwwroot\add_short.aspx Line: 131

Stack Trace:
[NullReferenceException: Object reference not set to an instance of an
object.]
FreeTextBoxControls.Support.ResourceManager.LoadResource(Hashtable
target, String language, String cacheKey)
FreeTextBoxControls.Support.ResourceManager.GetResources()
FreeTextBoxControls.Support.ResourceManager.GetString(String name)

FreeTextBoxControls.FreeTextBox.SetToolbarButtonLanguage(ToolbarButton
toolbarButton)
FreeTextBoxControls.FreeTextBox.RenderToolbarButton(HtmlTextWriter
writer, Toolbar toolbar, ToolbarButton toolbarButton)
FreeTextBoxControls.FreeTextBox.RenderToolbar(HtmlTextWriter writer,
Toolbar toolbar)
FreeTextBoxControls.FreeTextBox.RenderRichEditor(HtmlTextWriter
writer)
FreeTextBoxControls.FreeTextBox.Render(HtmlTextWriter writer)
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +241
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +72
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter
writer) +44
System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
+262
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +241
ASP.add_short_aspx.__Render__control1(HtmlTextWriter __output,
Control parameterContainer) in d:\Inetpub\wwwroot\add_short.aspx:131
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +27
System.Web.UI.Control.Render(HtmlTextWriter writer) +7
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +241
System.Web.UI.Page.ProcessRequestMain() +1926
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