Warning: call_user_func_array() [function.call-user-func-array]: plugin error

Hi guyz, i made my own plugin that updates the comment dates after a specific date, but now as i installed it in my local machine it worked okay, but when i ran it on the online site, it worked okay but throws a warning message : Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘auto_comment_init’ was given in /home/pleasech/public_html/wp-testing/wp-includes/plugin.php on line 405 at the top of my admin window. I want to be fixed, is there any one for a solution to that. Any help would be appreciated. Thanks in advance …..