Microsoft JScript runtime error: 'CKEDITOR' is undefined

Hello,

I got assigned a task to modify a .NET app that uses CKEDITOR. I opened the
app in VS2010 and when i try to run it I get the following error:

Microsoft JScript runtime error: 'CKEDITOR' is undefined

If I reply with Continue, the app keeps going and then it encounters another
error, this time in the config.js file:

Microsoft JScript runtime error: Exception thrown and not caught

Could please help to figure out what is wrong and what i need to do in order
to fix it.

I appreciate any help you can provide...