prestashop Fatal error: Class 'Language Manager'

[lluchiano]

I've install a fresh copy of prestashop on server, i've meet the requirements, but when I acces install dir have this error:

Warning: include(/home/americas/public_html/skatestore.ro/install/classes/LanguagesManager.php) [function.include]: failed to open stream: No such file or directory in /home/americas/public_html/skatestore.ro/install/index.php on line 22

Warning: include() [function.include]: Failed opening '/home/americas/public_html/skatestore.ro/install/classes/LanguagesManager.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/americas/public_html/skatestore.ro/install/index.php on line 22

Fatal error: Class 'LanguageManager' not found in /home/americas/public_html/skatestore.ro/install/index.php on line 23

I search google and forum, and i can't find a similar situation. Thanx!

L.E. I realized that it was becouse of capital letters.
Yestarday i've install a fresh copy too and got an error on front and after a few hours "Hack attempt". Hope it wont happen again. Thaks all the team for all the grate work that they doing.