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 ('6e39a6b9772017a4e4bb6a0c2acfcdee', -1, 1714249099, 1714249099, '0387cae0', 23, 0)

Line : 158
File : sessions.php