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 ('7f9d5d7c76b5cf2679ef451b0c4f84f8', -1, 1794426034, 1794426034, 'd849d8bc', 8, 0, 0)

Line : 193
File : sessions.php