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 ('393a5f939490e46c75390e7e9f37e862', -1, 1713993874, 1713993874, '12778348', -8, 0)

Line : 158
File : sessions.php