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 ('3bf62a1be5e809bd4a89f63c4378b90d', -1, 1714743576, 1714743576, '12743e2d', 20, 0)

Line : 158
File : sessions.php