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 ('43c14f4dd558ccb49c3659bd1b0a91d8', -1, 1714312523, 1714312523, '12dec1cf', 20, 0)

Line : 158
File : sessions.php