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 ('4c176945a2447bd8741a0cd9097025e8', -1, 1714001025, 1714001025, '12dd0f0f', 0, 0, 0)

Line : 193
File : sessions.php