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 ('e0a24fbc161b8cc9d3711d190b79b2b1', -1, 1714035264, 1714035264, '03ef5b05', -1, 0, 0)

Line : 187
File : sessions.php