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 ('6ab7524245677c3022e3408bb50dac3f', -1, 1714731147, 1714731147, '12bcafb6', -4, 0)

Line : 158
File : sessions.php