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 ('966ac0b4da5dd0bea0af0d0e8b003d69', -1, 1714392628, 1714392628, '0380c615', 7, 0)

Line : 158
File : sessions.php