Cannot modify header information

[andrej02]

I have got problem with admin. I would like change default language.It is showing my this:

 

Warning: Cannot modify header information - headers already sent by (output started at c:\program files\easyphp1-8\www\oscommerce\admin\includes\languages\slovak\languages.php:64) in c:\program files\easyphp1-8\www\oscommerce\admin\includes\functions\general.php on line 18

 

Do you know somebody where is problem? Thanks for your advice.

 

Andrej