23 December 2015
Joomla! 3.4.7 has major bugs which cause core Joomla! and third party extensions (like ours) to fail randomly. Please read this article for more information. TL;DR: OOPS, JOOMLA! HAS SCREWED UP. We do everything we can to work around it but you need to do some stuff too. Easy fixes next to the Resolution headers below.
UPDATE December 24th: Upgrade to Joomla! 3.4.8 as soon as it's available, around the evening of December 24th.