CaRP : Caching RSS Parser : Error : Failed to access feed

CaRP: Caching RSS Parser - Documentation

CaRP was unable to access the requested feed or a locally cached copy of it.

If another error message is displayed at the same time, fixing the other error may fix this one.
Starting with version 4.0.21, the HTTP status code returned by the remote server is displayed in the error message. You may be able to find out more about the cause of the problem by looking up the status code here. If the number shown is "-1", no HTTP status code was returned, indicating that the connection failed completely, or the remote server didn't return a valid HTTP status line.