phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1054 Unknown column 'session_id' in 'field list'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ef1b0c1270a545a7a993075568c6156e', -1, 1328534008, 1328534008, '266bb3d4', -6, 0, 0)

Line : 187
File : sessions.php