Problem after install new language

[movi]

Hello

I install new language from there http://www.oscommerce.com/community/contributions,1132

I admin area, I add new language, set as default and I have problem.

In admin area I have still not change language and my shop site is destroyed.

 

Warning: require(includes/languages/polish/index.php) [function.require]: failed to open stream: No such file or directory in /home/directory/public_html/shop/catalog/index.php on line 33

 

Warning: require(includes/languages/polish/index.php) [function.require]: failed to open stream: No such file or directory in /home/directory/public_html/shop/catalog/index.php on line 33

 

Fatal error: require() [function.require]: Failed opening required 'includes/languages/polish/index.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/directory/public_html/shop/catalog/index.php on line 33

 

How fix it?

 

Please help.

 

Thank you!

[movi]

Anyone?:(