OpenQA.Selenium.WebDriverException: 'Cannot start the driver service on http://localhost:52196/'

I'm trying to start selenium with firefox like this:

    private void button1_Click(object sender, EventArgs e)    {        var driver = createFirefoxDriver();        driver.Navigate().GoToUrl("http://duck.com");    }    IWebDriver createFirefoxDriver()    {        var service = FirefoxDriverService.CreateDefaultService();        service.FirefoxBinaryPath = BrowserPath.Firefox;        var driver = new FirefoxDriver(service,                                       new FirefoxOptions(),                                       TimeSpan.FromSeconds(180));        driver.Manage().Timeouts().PageLoad = TimeSpan.FromSeconds(120);        driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(80);        return driver;    }public class BrowserPath    {        public static string? Firefox        {            get            {                if (m_firefox == null)                {                    m_firefox = Registry.GetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\firefox.exe", "", null) as string;                }                return m_firefox;            }        }        private static string? m_firefox;    }

But i'm getting this error:

OpenQA.Selenium.WebDriverException: 'Cannot start the driver service on http://localhost:53912/'

there's nothing on port 53912 as the command output nothing:

$ netstat -a -o | find "53912"

the geckodriver.exe is also in the output folder. How do I fix that?