I'm starting to get this error on my phpbb3 boards:
SQL ERROR [ mysqli ]
Unknown column 's.session_forum_id' in 'where clause' 
An SQL error occurred while fetching this page. Please contact the Board Administrator if this problem persists.
At first, I thought I goofed somewhere, but my generic phpbb3 installation that's a pristine installation (no posts, no config changes) does the same. It's my advanced One-Click install that's having this problem. Is anybody else having phpbb3 problems? Yes, I tried the database update to no avail. I'm running stock PHP 5.2.6.