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 ('a2e1be2bf6b2210c85549489ecda1d82', -1, 1714789009, 1714789009, '12ddf5c4', 16, 0)

Line : 158
File : sessions.php