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 ('dcd3e6ecbd7dc7de831f395479bd387a', -1, 1713523964, 1713523964, '03105396', -2, 0, 0)

Line : 187
File : sessions.php