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 ('7570b2f5629f4fe68960b1db60d90cdc', -1, 1754389003, 1754389003, 'd849d833', -9, 0, 0)

Line : 189
File : sessions.php