The problem results from an error in the original SQL install script (DNN 4.00.02) for the FindBanners stored proceedure. I have a correction script available as a download on my website (http://www.wesnetdesigns.com/Downloads/tabid/76/Default.aspx) that will take care of this problem as well as a similar one relating to the GetLists stored proceedure. This would need to be executed either from your site's Host-->SQL page or by using a database management tool. First, let's see if we can get you logged into your site. Try browsing directly to your login page which should be:
http://www.ateed.org/muntada/Home/tabid/36/ctl/Login/Default.aspx
If that doesn't work, try browsing directly to the Host-->SQL page which hopefully will force you to login:
http://www.ateed.org/muntada/Host/SQL/tabid/21/portalid/0/Default.aspx
If you are able to login and go to the Host-->SQL page you would then need to copy the correction script that you have downloaded from my site into the SQL textarea, check the "Run as Script" box, and click execute.
If neither of these will bring up a login page then I suspect you have enabled banners on all pages of your site and will be blocked from even the login page. In this case direct access to the database will be the only solution.
With the Godaddy hosting, are you able to directly access the DotNetNuke MS SQL database using SQL Server Management Studio, SQL Server Management Studio Express or something similar. If so, you could run the correction script in one of these database management tools. If Godaddy does not permit direct access to the database, perhaps their technical support could run the script for you. Good luck!