Fatal error: _parser_simplepie_get_parser()

When I try to create a feed I am getting this error.

Fatal error: _parser_simplepie_get_parser() [function.require]: Failed opening required 'sites/all/modules/feedapi/parser_simplepie/simplepie.inc' (include_path='.:/usr/local/php-4.4.8-1/share/pear') in ...l/sites/all/modules/feedapi/parser_simplepie/parser_simplepie.module on line 222

any help would be appreciate it!

thanks,

Camilo