Decoding failed: Syntax error

#0 /var/www/ultimo.magento-demo.ru/includes/src/Df_Localization_Model_Realtime_Dictionary.php(320): Zend_Json::decode('')
#1 /var/www/ultimo.magento-demo.ru/includes/src/Df_Localization_Model_Realtime_Dictionary.php(29): Df_Localization_Model_Realtime_Dictionary->hasEntry('Empty')
#2 /var/www/ultimo.magento-demo.ru/includes/src/Df_Localization_Model_Realtime_Translator.php(39): Df_Localization_Model_Realtime_Dictionary->translate('Empty', 'Mage_Page::Empt...')
#3 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(12314): Df_Localization_Model_Realtime_Translator->translate('Empty', 'Mage_Page::Empt...')
#4 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(11846): Df_Core_Model_Translate->_getTranslatedString('Empty', 'Mage_Page::Empt...')
#5 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(7257): Mage_Core_Model_Translate->translate(Array)
#6 /var/www/ultimo.magento-demo.ru/includes/src/__cms.php(49380): Mage_Core_Helper_Abstract->__('Empty')
#7 /var/www/ultimo.magento-demo.ru/includes/src/__cms.php(49359): Mage_Page_Model_Config->_appendPageLayouts('global/page/lay...')
#8 /var/www/ultimo.magento-demo.ru/includes/src/__cms.php(49409): Mage_Page_Model_Config->_initPageLayouts()
#9 /var/www/ultimo.magento-demo.ru/includes/src/__cms.php(49218): Mage_Page_Model_Config->getPageLayout('one_column')
#10 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(33775): Mage_Page_Helper_Layout->applyHandle('one_column')
#11 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(33723): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'home')
#12 /var/www/ultimo.magento-demo.ru/app/code/core/Mage/Cms/controllers/IndexController.php(45): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'home')
#13 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(22865): Mage_Cms_IndexController->indexAction()
#14 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(39709): Mage_Core_Controller_Varien_Action->dispatch('index')
#15 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(39239): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#16 /var/www/ultimo.magento-demo.ru/includes/src/__default.php(42387): Mage_Core_Controller_Varien_Front->dispatch()
#17 /var/www/ultimo.magento-demo.ru/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#18 /var/www/ultimo.magento-demo.ru/index.php(87): Mage::run('', 'store')
#19 {main}