EDIT: They pushed the patch and everything is working correctly again. NOTE: They did make a major change to the search box. You know click the magnifying glass next to the social media icons. It will bring up an overlay with the search box and results. There are no thumbnails associated with these results. I’m going to request this be added.
EDIT: I received an email from the devs this morning (2 Jan) and they are going to push a patch ASAP.
Themify pushed an update to their theme this morning that significantly changes the search feature. Unfortunately, it has an error in its code that breaks the search and archive function. We have a support request in to fix it.