This failed:
include(/home/www/muzika/www//home/www/muzika/www/community/ray/modules/global/inc/header.inc.php) [function.include]: failed to open stream: No such file or directory in /home/www/muzika/www/community/ray/modules/global/inc/header.inc.php on line 3


you have this in ray header:
include("/home/www/muzika/www/community/ray/modules/global/inc/header.inc.php");

But the first part that failed refers to the following location:
include(/home/www/muzika/www//home/www/muzika/www/community/ray/modules/global/inc/header.inc.php)

Which see more is different and would almost appear as if there was some typo somewhere as you have some duplication like /home/www/muzika/www//home/www/muzika/www/com...

You need to figure out what the exact path is for the file at your host account. Ftp or your control panel should be able to verify this. you need to determine if it is

/home/www/muzika/www//home/www/muzika/www/com...
or
/home/www/muzika/www/com...

Then update the ray header.inc.php
update the /inc/header.inc.php
and the files in /periodic/

with the correct paths.