Commented Issue: Error with linking to pages in the CKEditor [7386]

I am getting this error when I try to link to a page in the CKEditor I am using DNN 4.09:

Server Error in '/dnn' Application.
________________________________________
StartIndex cannot be less than zero.
Parameter name: startIndex
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.ArgumentOutOfRangeException: StartIndex cannot be less than zero.
Parameter name: startIndex

Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:
[ArgumentOutOfRangeException: StartIndex cannot be less than zero. Parameter name: startIndex] System.String.Remove(Int32 startIndex) +2984440 WatchersNET.CKEditor.Browser.Browser.TreeTabs_SelectedNodeChanged(Object sender, EventArgs e) +942 System.Web.UI.WebControls.TreeView.OnSelectedNodeChanged(EventArgs e) +111 System.Web.UI.WebControls.TreeView.RaisePostBackEvent(String eventArgument) +570 System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

How do I fix this? I am using 2.004
Nolan
Comments: ** Comment from web user: NolanSmith **

I am getting this error now after the link is created. I am using the Relative Secured URL.

Server Error in '/dnn' Application.
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:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[NullReferenceException: Object reference not set to an instance of an object.]
DotNetNuke.Services.FileSystem.FileServerHandler.ProcessRequest(HttpContext context) +220
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Nolan