PHP Errors on Joomla!.

Hi; there's a problem with various components I have installed in Joomla. Moreover, this component: http://simgalaxy.missingstudios.com/www/index.php?option=com_jmultimedia&view=jmultimedia&catid=0&Itemid=29.
I'd like a music compendium on my site, and this component has struck my eye. So is there any solution to this PHP Error?

BabyJack.

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/missings/public_html/hostedsites/simgalaxy/www/libraries/joomla/database/database/mysql.php on line 342 Find out the corresponding mysql_query() statement, and add proper error checks there, like
...=mysql_query(...) or die(mysql_error());

Any ideas how to access line numbers on a Mac?

Perhaps you should also report this to the developer?