I assume that you are using version 1.29c. Here's what I found regarding this error in the FoxWeb 1.2 documentation:
Basically a request comes, but all your channels are busy. FoxWeb waits for a few seconds for a channel to free up, but nothing does, so it returns the above message.
Sent by Erick on 01/13/2004 06:27:13 AM:
I keep receving the followimg error. Any adive ?
Error in CGI Back-End Program
There was an error during execution of the Back-End CGI program. The error is:
CGI Program could not communicate with resident server.
Please Check the troubleshooting page.