At least one of the MDN wiki hosts is not able to load settings from the database, so something is broken somewhere. Can someone please investigate? Thanks!
https://developer.mozilla.org/en/MathML/Element/munderover is an example of where we see the errors. Restarted dekiwiki on the 3 hosts, however errors still occur. I am seeing the following in deki-api.log http://jason.pastebin.mozilla.org/1435224 Sent an email to mindtouch support for their assistance.
According to BrianH at MindTouch the following URL https://developer.mozilla.org/deki/scripts/res/syntax/ needs to return 200. Previously it was inaccessible by dekiwiki. Modified apache configuration and restarted dekiwiki.