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 ('904535f422a9674a5b95bf31b1bd5f2f', -1, 1714319992, 1714319992, '03905d49', 12, 0)

Line : 158
File : sessions.php