phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1364 Field 'session_topic' doesn't have a default value

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d3b99f4fe9709a77827b5b0bdea4e907', -1, 1711719711, 1711719711, '12ceeebd', 0, 0, 0)

Line : 193
File : sessions.php