I've upgraded ISPConfig to 3.1.11 and now that I'm trying to install a package - Wordpress - to a new website, it's not working. Specifically, I fill out the details and click "install", but nothing happens. There isn't any red pulsing number at the top of the screen. It's apparently not even trying to install the package. So, clearly, there's some sort of error that's making it quit the installation before it's even began, but without any sort of error messages informing me of what's gone wrong, this is all a bit useless. Help.