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 ('80ba7a022da3120eb3cd35d88ef90045', -1, 1714005549, 1714005549, '12e035ca', -4, 0, 0)

Line : 187
File : sessions.php