I've installed Mighty Extensions but I just use Mighty Registration. My website is online since 2010 and the plugin has worked since then.
Yesterday my client reported that the registration is not working. I looked it and the following error is happening:
Error: the XML response that was returned from the server is invalid.
Output has already been sent to the browser at C:xxxxxxxxindex.php:2.
Please make sure the command $xajax->processRequests() is placed before this.
You have whitespace at the beginning of your response.
I was thinking to update the plugin but there is a warning at the download page which made me afraid to do it.
The question: can I update it by this new domain? Or do you have any other solution?