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, session_admin) VALUES ('34a7b08592e29451b077ecd18a9b1992', -1, 1752137272, 1752137272, 'd849d8bf', -9, 0, 0)

Line : 190
File : sessions.php