How to get around session already started error in php-webdriver?

Question

PHP

The parser is powered by php-webdriver.
If you run the second script simultaneously with the parser, it gives an error: session already started
You have to end the geckodriver process in the console and start it again.
How, when creating a RemoteWebDriver, instead of ::create, to hook up an existing active session and either terminate it or use it?
Or restart the console process for this to work automatically.
The code:

$serverUrl = 'http://127.0.0.1:4444';

$desiredCapabilities = DesiredCapabilities::firefox();
$desiredCapabilities->setCapability('acceptSslCerts', false);
$firefoxOptions = new FirefoxOptions();
$firefoxOptions->addArguments(['-headless']);
$desiredCapabilities->setCapability(FirefoxOptions::CAPABILITY, $firefoxOptions);

$driver = RemoteWebDriver::create($serverUrl, $desiredCapabilities); //здесь выбивает ошибку

$driver->get('https://test.site');
echo "The title is '" . $driver->getTitle() . "'\n";
$driver->quit();