Javascript Error When Adding Main Blog Image

I get the following error when trying to add the main image in EasyBlog:

Unable to get file list from server

Also, there's a javascript error triggered:

b.currentItem(...) is undefined



Source File: media/com_easyblog/scripts/easyblog-3.9.19775.static.min.js

Line: 12

It was working before so I'm not sure if it's related to the most recent update.

Thanks.