com.apple.dock.extra crash... HELP!

I had a kernel panic today, and I looked at my Console after rebooting. Then I noticed that Console was plastered with crash reports for com.apple.dock.extra:

View attachment 623320


It seems that iTunes, iPhoto, Reminder, Calendar, etc are causing this:

View attachment 623321

And this is the content of each individual report:

com.apple.dock.extra crash... HELP!