Here the Log, what is the best way to post logs here 
?
Live Server Live Server - Pastebin.com
I have done a fresh install on a Ubuntu 16.04 LTS x64 and follow these guide both Servers was setup this way. I get the same Error. Fresh Install - Pastebin.com
There i test on the fresh install the Lightbox but it never runs by me. But i try first to find the error here.
https://meta.discourse.org/t/images-no-longer-getting-lightboxed-part-3/24485
Regards
Imperator