my web site is

[eluser]Unknown[/eluser]
http://www.keliatak.com/index.php/ is display the word 'Array'

[eluser]rabidmacine9[/eluser]
nice website...It displays "Array" only for a second while it's loading

[eluser]pickupman[/eluser]
The word is being echoed out at the top of your html in the source code. Like jelmer mentioned, you may have echoed/print a variable somewhere. I would do Find in your code, could be any file doing it (controller/library/model/).