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 ('e31b14500b26cbde32ee4b0a4e8a9bbd', -1, 1714019325, 1714019325, '030ca2b3', -4, 0, 0)

Line : 187
File : sessions.php