Error

I am getting the following error:

Warning: Missing argument 4 for plgContentJdForm::onContentPrepare() in /home/content/50/12085250/html/joomla/upgrade/plugins/content/jdform/jdform.php on line 16

You can see it on the following page:
www.rolfchurch.org/index.php?option=com_...ormat=html&Itemid=75

It seems there are something not correct here. Could you please submit a support ticket sending us admin and FTP account of your site so that I can check to see what's wrong and get it corrected for you ?

Regards,

Tuan