Non-fatal warning: file /opt/webwork/courses/m126_jensen/course.conf contains at least one character code which is not valid in UTF-8. (The copyright sign is often a culprit -- use '©' instead.)
While this is not fatal you should fix it
I am working on a new WW server and have gotten so far along but seem to have hit this same road block. I followed the instructions here and have the legacy version of MathJax running. I am getting a different error though, a mixed content error...
Blocked loading mixed active content “http://126.96.36.199:8080/webwork2_files/mathjax/MathJax.js?config=TeX-MML-AM_HTMLorMML-full”
Chrome and Safari won't load any equations but Firefox will let you load images but not MathJax.
I cannot seem to find anybody else having my mixed content issues...