Question on a PHP warning

[astra]

I don't know if this is a Suffusion problem, but I get this warning from my server error log :

PHP Warning: call_user_func_array() [<a href='function.call-user-func-array'>function.call-user-func-array</a>]: First argument is expected to be a valid callback, 'suffusion_before_end_content' was given in /home1/esoundsc/public_html/astrablog/wp-includes/plugin.php on line 403

Am using Wordpress 3.4 and latest Suffusion, but this warning has been around since Feb 23, 2012 and just keeps recurring.

Line 403 in current WP 3.4's wp-includes/plugin.php is called from function do_action($tag, $arg = '')

In this code :
do {
foreach ( (array) current($wp_filter[$tag]) as $the_ )
if ( !is_null($the_['function']) )
call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));

} while ( next($wp_filter[$tag]) !== false );

array_pop($wp_current_filter);


Is this a Suffusion issue, or something else ? Just wondering ...

Thanks

[sayontan]

This function is available from the front-end. If you have a plugin that is trying to access this from the back-end (something like a preview plugin), that might be resulting in such errors.

[astra]

Thanks for your reply, at least that eliminates Suffusion as the problem, and I can look elsewhere ...