I have Joomla! 2.5.28, and VirtueMart 2.6.16
I purchased ARTIO VM Invoice 3. I receive the message:
VM Invoice: Installed VirtueMart version is not supported, at least VirtueMart 3.0.0 is required. If you are experiencing this message on site, please, disable VM Invoice Autorun plugin.
And also, at Create New Order TAB, when I enter the product name, I receive:
Send failed. Status for ajaxSendPost is 500
What do you suggest?What version to use