Cron job gives permission error on execution

I am running a tracker (CPVLab) hosted on a Lemp Stack The site works fine but there is a problem with a cron job. When the cron job executes I get an error:

2015/08/01 07:00:04 [error] 1303#0: *605 FastCGI sent in stderr: “PHP message: PHP Warning: unlink(/var/www/ Permission denied in /var/www/ on line 0” while reading response header from upstream, client:, server:, request: “GET /cron-wurfl.php HTTP/1.1”, upstream: “fastcgi://”, host: “

I set up the cron job using crontab -e as root, no other errors present but I did have issues with ionCube leaders to start with. Can anyone help please. Thanks.

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BINGO problem solved! Thanks for the answers, much appreciated

Are you using wget to request the file on crontab?

If so it doesn’t matter if cron is setup as root or any other user as it is Nginx and PHP-FPM executing the file as the web user.

Try changing the ownership of the whole directory:

chown -R www-data:www-data /var/www/