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 ('7a25ad731e0a6c517f26ee052b4aec1d', -1, 1714380926, 1714380926, '340e7e4a', 7, 0)

Line : 158
File : sessions.php