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 ('ea285bb8b2da18e1e073addbd9ee3be3', -1, 1714610949, 1714610949, '12759e2f', 20, 0)

Line : 158
File : sessions.php