Can u help me solve this prob please?

Hey guys i got the following problem/line when im entering the clan section on the website -

Server Error in '/' Application.


Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. There is not enough space on the disk. (Exception from HRESULT: 0x80070070)
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.IO.FileLoadException: Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. There is not enough space on the disk. (Exception from HRESULT: 0x80070070)

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.
Deleted cookies/re-installed firefox/restarted the pc.

I've deleted cookies/restarted pc/re-installed firefox.

nothing helps, just keep on getting this Error. 1st time getting this kind of Error

Thanks for the people who helps . Have a nice un-buggy day.