I've been struggling with a warning message above the comments field on a site I'm building for a friend and I'd be very grateful if you're able to help. I've asked on the Wordpress Codex, but unfortunately there's been no response.
Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'tl_spam_free_wordpress_comments_form' was given in /home/euanmitc/public_html/wp-includes/plugin.php on line 405
I've attempted to comment out the offending line in the plugin.php
I have also deactivate all plugins with no success.
You can see an example here: http://euanmitchell.com.au/2012/05/future-education/
The site uses a Thesis theme. Please let me know if you have an ideas for possible solutions.