send menssage error

in my instalation of modx if
i send a menssage to one user all go well
but if i send to a group or a all users return errors like

Fatal error: Call to a member function on a non-object in /home/puedesbe/public_html/hydragestion/website/manager/processors/send_message.processor.php on line 43

thanks

Thanks for the catch. Please file a bug report if you don’t mind: http://modxcms.com/bugs/

i do it
hi