https://www.esoui.com/forums/forumdisplay.php?f=164
Seems that Shissu then embedded libraries which are now outdated and they get laoded for you.
Either delete the subfolders with the libraries and install them as standalone versions (if given properly for download) or remove them from the Shissus txt file where they get loaded.
Infos what went wrong here:
https://wiki.esoui.com/Libraries#Shi...ng_problems.29