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 ('de0a6fdb7136796eaf6c99cbf604b1cd', -1, 1714702199, 1714702199, '12df7711', 13, 0)

Line : 158
File : sessions.php