Selenium not able to open browser session

I am trying to get a Selenium Stand-Alone server running to test with NagiosXI. I am following the details in the "Integrating Selenium with Nagios XI" documentation.

I am getting an error message which reads:

INFO - Got result: Failed to start new browser session: org.openqa.selenium.server.RemoteCommandException: Error while launching browser on session null

I have found some old talk about this and at that time there were incompatibility issues between Selenium and Firefox versions.

I am running Firefox version 24.8.0

Selenium version is: selenium-server-standalone-2.35.0

Does anyone know of any issues with these versions or what might be causing this error?

Thanks

I tried selenium-server-standalone-2.43.0.jar but it gives the same error.....

I have downloaded and am using Firefox version 15.0.1 and still getting the same problem.

The configuration for the selenium standalone server I am using says that the max version for Firefox is 15.0.* so I don't know why I would still be having this problem.

Does anyone ever respond to these posts?

Trying to launch Chrome browser using IDE but showing below error [error] Could not connect to Selenium Server. Have you started the Selenium Server yet?

Even I run the Selenium server using below command from CMD.

C:\Users\xyz\Desktop>java -jar C:\Users\xyz\Downloads\selenium-server-standalone-2.53.1.jar

Please help 

Regards,
Vishal S.

@page { margin: 2cm } p { margin-bottom: 0.25cm; line-height: 120% }
webdriver.WebDriver.attachToSession(executor, session_id);

Here https://crbtech.in/programmes/software-testing-training-programme you can learn selenium software in their training program