[notorious]

Would someone be able to help with this:
I'm getting the following errors whe I tr to run the schedule task:

Warning: main(./rss.php): failed to open stream: No such file or directory in /homepages/4*/d********/htdocs/forum/admincp/cronadmin.php on line 56

Fatal error: main(): Failed opening required './rss.php' (include_path='.:/usr/local/lib/php') in /homepages/4*/d*******/htdocs/forum/admincp/cronadmin.php on line 56

This is what I have on line 56:
require_once($nextitem['filename']);

and I'm getting this on the rss.php:

Fatal error: Call to undefined function: log_cron_action() in /homepages/4*/d********/htdocs/forum/Rss.php on line 7

Which is:
log_cron_action('RSS News Feed Posted', $nextitem);

Any Help would be appriciated