Error message that dfoesn't appear on the default theme

I'm getting an error message that isn't appearing when I use the default BuddyPress theme (1.5.1):

Warning: copy(/home/writerss/public_html/wp-content/themes/bp-colours-lime/index.php) [function.copy]: failed to open stream: No such file or directory in /home/writerss/public_html/wp-content/plugins/easy-content-types/includes/register-taxonomies.php on line 58

You can see it here:
http://www.writers-site.com