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 ('e81638660a95ab488e7624f834ee692d', -1, 1714743648, 1714743648, '12def015', 0, 0)

Line : 158
File : sessions.php