phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('ef933fc4d92f9c9bf05cd30f6f768d63', -1, 1714256031, 1714256031, '0391b2f0', 20, 0)

Line : 158
File : sessions.php