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, session_admin) VALUES ('a2942874ba23ea070f9422b374ed4290', -1, 1780597190, 1780597190, 'd849d893', 3, 0, 0)

Line : 189
File : sessions.php