Error while running the 'Keep alive' schedule task

Nopcommerce 3.0

Anyone Knows this error in  log:

Log level:   Error
Short message:   Error while running the 'Keep alive' schedule task. Error  remote server: (404) Not found.
Full message:   System.Net.WebException: Error in remote server (404) Not found. in System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) in System.Net.WebClient.DownloadString(Uri address) in System.Net.WebClient.DownloadString(String address) in Nop.Services.Common.KeepAliveTask.Execute() in Nop.Services.Tasks.Task.Execute()
IP address:  
Customer:  
Page URL:   http://www.sun-service.org/shoponline
Referrer URL:  
Created on:   5/20/2013 2:39:29 PM

thanks

Not solved,
the error is back...

maybe this error is caused from my url in virtual category ?

my site is in http://www.mysite.org/nopcommerce/

in the admin panel online customers:
Guest 87.117.227.31 United Kingdom 05/24/2013 4:59:17 PM http://www.sun-service.org/e-commerce/keepalive

this causes the error in log ?

any solution?

Please see this post of mine

I can not find which files I need to change in my version 3.0 no source

can you help me please?

Tanks

It's not possible. Please see my P.S. here if you're using "no source code" version