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 ('2b0dd9c7334b36cf888bac9d6f43376d', -1, 1714723040, 1714723040, '0387c8d3', 17, 0)

Line : 158
File : sessions.php