In inc/functions_online.php
elseif($parameters['action'] == "show")
should be
elseif($parameters['action'] == "read")
It's fun to read the source and see what you find, isn't it?
especially when it's a fix
Thank you for your bug report.
This bug has been fixed in our internal code repository. Please note that the problem will not be fixed here until these forums are updated.
With regards,
MyBB Group