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 ('949f9e2c0f301e180bf3210016873be2', -1, 1714632047, 1714632047, '03951af6', 23, 0)

Line : 158
File : sessions.php