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 ('f16f91c40e4dd74e8288f92e584b515e', -1, 1714199948, 1714199948, '03913c1d', 15, 0)

Line : 158
File : sessions.php