Error Message

I keep getting this error whenever I try to login to my blog and sometimes when trying to comment. Warning: main(../wp-config.php) [function.main]: failed to open stream: No such file or directory in /home/iyf500/public_html/wp-admin/update-links.php on line 2

Fatal error: main() [function.require]: Failed opening required ‘../wp-config.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/iyf500/public_html/wp-admin/update-links.php on line 2

I haven’t edited either file before. I never got this error until after upgrading, if that helps. I’ve also tried reinstalling update-links.php several times and I still get the error. Any help is appreciated.