Not without more information.
How are you getting that error?
What are you doing when it comes up?
Can you try turning off your plugins and seeing if the error still appears?
I’m getting this same error, when I save a post in my 2.2.2 installation, rather than being returned to the page administration or the page editor. The changes are saved but I have to click back to continue working.
Nevermind; I had copied over a Posts table from a 2.2.1 installation to pre-populate the data (moving to a live test site from an internal test site), and apparently WP didn’t like that table. I restored the original one and no more error. Still not sure why, the tables look identical except for the content when compared in SQLyog.
