Warning snoopy.php problem

Hi Guys,

Ive just took control of a clients site and discovered an error that is new to me.

At the bottom of their homepage and WP-admin log in page i keep seeing the following warning message –

Warning: is_executable() [function.is-executable]: open_basedir restriction in effect. File(/usr/local/bin/curl) is not within the allowed path(s): (/home/teuthill/:/usr/lib/php:/usr/local/lib/php:/tmp) in /home/teuthill/public_html/wp-includes/class-snoopy.php on line 208

Any ideas why and how i can get rid of this?

Their site is https://www.cheshirefarmchips.co.uk

An help would be much appreciated.

Kind Regards
Tim