Hello,
Whenever I go to [[incubator:Special:Preferences]], I get an internal error similar to the following:
"[31b42f98] 2012-11-13 16:12:12: Fatal exception of type MWException"
I don't know if I changed my preferences there recently, but I'm unable to change preferences now, or even see what they're set to. Special:Preferences seems fine on other WMF wikis (works on metawiki and enwiki).
Version: unspecified
Severity: major