string(31) "Eshop don`t allow page language"

string(1099) "#0 /var/www/eshop.zenitsk.sk/web/library/Hell/Eshop/Settings.php(84): Hell_Eshop_Settings->getLang()
#1 /var/www/eshop.zenitsk.sk/web/library/Hell/Controller/Abstract.php(50): Hell_Eshop_Settings->__construct()
#2 /var/www/eshop.zenitsk.sk/web/application/controllers/SystemController.php(9): Hell_Controller_Abstract->preDispatch()
#3 /var/www/eshop.zenitsk.sk/web/library/Zend/Controller/Action.php(502): SystemController->preDispatch()
#4 /var/www/eshop.zenitsk.sk/web/library/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch('facebookLoginAc...')
#5 /var/www/eshop.zenitsk.sk/web/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#6 /var/www/eshop.zenitsk.sk/web/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#7 /var/www/eshop.zenitsk.sk/web/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#8 /var/www/eshop.zenitsk.sk/web/public/index.php(109): Zend_Application->run()
#9 {main}"

array(4) {
  ["controller"] => string(6) "system"
  ["action"] => string(14) "facebook-login"
  ["module"] => string(7) "default"
  ["lang"] => string(2) "sk"
}