doesnt work

pen() []: http:// wrapper is disabled in the server configuration by allow_url_fopen=0 in on line : fopen(http://feeds.feedburner.com/frontpage) []: failed to open stream: no suitable wrapper could be found in on line
: fread() expects parameter 1 to be resource, boolean given in on line : fclose() expects parameter 1 to be resource, boolean given in on line