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 ('c49560fba4ff9f5152e350a3c62858ef', -1, 1714344159, 1714344159, '12761efd', 7, 0)

Line : 158
File : sessions.php