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 ('f2bd5c8037ee35121c3b8e1d03df613a', -1, 1714653961, 1714653961, '12bf2b8c', -10, 0)

Line : 158
File : sessions.php