‘IntlDateFormatter’ not found in /lib/internal/Magento/Framework/ObjectManager/Factory/AbstractFactory.php

I got that error while open magento 2 store on online server

 Fatal error: Class 'IntlDateFormatter' not found in /var/www/html/yourParts/lib/internal/Magento/Framework/ObjectManager/Factory/AbstractFactory.php on line 111 

I’ve installed and enabled intl extension

php version is 5.6