Hello I would please like some information. installed the site and everything does work except the upload music. I do the upload and receive the message site.

Warning: copy() [function.copy]: Filename cannot be empty in /home/public_html/includes/common.inc.php on line 387

Warning: Cannot modify header information - headers already sent by (output started at /home/public_html/includes/common.inc.php:387) in /home/public_html/includes/common.inc.php on line 228

change your server settings to increase the upload max size.

How do you change it?