Fatal error: Uncaught Facebook\WebDriver\Exception\WebDriverCurlException: Curl error thrown for http POST to /session with params: {"capabilities":{"firstMatch":[{"browserName":"chrome","goog:chromeOptions":{"args":["--headless"]}}]},"desiredCapabilities":{"browserName":"chrome","platform":"ANY","chromeOptions":{"args":["--headless"]}}} Failed to connect to localhost port 4444: Connection refused in /var/www/hubnet-dev/hubnet2/cronjobs/selenium/vendor/php-webdriver/webdriver/lib/Remote/HttpCommandExecutor.php:346 Stack trace: #0 /var/www/hubnet-dev/hubnet2/cronjobs/selenium/vendor/php-webdriver/webdriver/lib/Remote/RemoteWebDriver.php(134): Facebook\WebDriver\Remote\HttpCommandExecutor->execute(Object(Facebook\WebDriver\Remote\WebDriverCommand)) #1 /var/www/hubnet-dev/hubnet2/cronjobs/selenium/selenium_test.php(26): Facebook\WebDriver\Remote\RemoteWebDriver::create('http://localhos...', Object(Facebook\WebDriver\Remote\DesiredCapabilities)) #2 {main} thrown in /var/www/hubnet-dev/hubnet2/cronjobs/selenium/vendor/php-webdriver/webdriver/lib/Remote/HttpCommandExecutor.php on line 346