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 ('2a47a932634e4ce2436586edce1be9f3', -1, 1749890508, 1749890508, 'd849d8e2', -9, 0, 0)

Line : 190
File : sessions.php