Class 'JControllerLegacy' not found

Hello.

I have just installed Rapid Contact Ex on our company's Joomla 2.5 website, but when I try to access the Field Manager I receive the following error message:

PHP Fatal error: Class 'JControllerLegacy' not found in E:\site ... path\administrator\components\com_rapidcontactex\rapidcontactex.php on line 36

I'm not a Joomla or backend expert, but from what I can find on Google the problem is caused by us running a too-old version of Joomla – sadly however I am unable to make any updates due to some security settings that are out of my control. Is there any way to get the contact form working anyway?

Hello Andreas and thank you for posting.

You figured out correctly that this is an issue with your Joomla version. As far as I can tell, you are using a version prior to 2.5.5, which is a HUGE SECURITY RISK. I have seen websites hacked having version 2.5.9, back in 2012. Four years later, I can guarantee that your site is risking your whole server's integrity.
For this reason, I have removed the full path that you wrote, that reveals to anyone what your site is.

Now. There is a way to make it work, and that is by changing a few files. Please send me an email at me@mavxr.com and I will tell you exactly which files to change.
Thanks again.