Shop problem

[cziko]

Hello.
I have probelem with my prestashop on my computer and i can't fix it alone. Make someone help me with it?
When i try get in to a "shop" i see this:

Warning: require_once(/home/hankus/vhosts/motoryzacja/prestashop/config/../classes/CMS.php): failed to open stream: No such file or directory in /home/hankus/vhosts/motoryzacja/prestashop/config/config.inc.php on line 20 Fatal error: require_once(): Failed opening required '/home/hankus/vhosts/motoryzacja/prestashop/config/../classes/CMS.php' (include_path='.:/usr/share/php:/usr/share/pear') in /home/hankus/vhosts/motoryzacja/prestashop/config/config.inc.php on line 20

Also "payment" and "modules" cards in admin panel generate some information:

Warning: include_once(/home/hankus/vhosts/motoryzacja/prestashop/classes/PEAR.php): failed to open stream: No such file or directory in /home/hankus/vhosts/motoryzacja/prestashop/classes/Module.php(325) : eval()'d code on line 3 Warning: include_once(): Failed opening '/home/hankus/vhosts/motoryzacja/prestashop/classes/PEAR.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /home/hankus/vhosts/motoryzacja/prestashop/classes/Module.php(325) : eval()'d code on line 3 Warning: require_once(/home/hankus/vhosts/motoryzacja/prestashop/config/../classes/PEAR_Exception.php): failed to open stream: No such file or directory in /home/hankus/vhosts/motoryzacja/prestashop/config/config.inc.php on line 20 Fatal error: require_once(): Failed opening required '/home/hankus/vhosts/motoryzacja/prestashop/config/../classes/PEAR_Exception.php' (include_path='.:/usr/share/php:/usr/share/pear') in /home/hankus/vhosts/motoryzacja/prestashop/config/config.inc.php on line 20

I don't know how to make a shop working correstly. Please someone for help. All problems are to see on http://motoryzacja.krakow.pl/prestashop/