Here are the steps to reproduce the issue:
Connect pineapple, go through initial set up screen.
In advanced options, upgrade firmware to version 2.6
Set up again, specifying root password, ssid filtering, etc
Install Evil Portal and Portal Auth modules
Install Portal Auth dependencies
In Portal Auth, load default settings
Select Harvester injector set
Click the green "Clone Portal" button
Observe error message: An error has occurred. Check the logs for details.
I realize that there was a post created about this a bout a year ago and the issue had to due with tinycss, but shouldn't that issue have been fixed by now? I checked in dmesg and system log and couldn't find anything useful there.
I have posted this on the hak5 forums, but the forum seems dead at the moment.