phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cc33dd128d1bed0cf1f7e16e9680f0c5', -1, 1715197003, 1715197003, '0d3a89da', -4, 0, 0)

Line : 189
File : sessions.php