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 ('9cb9de75870ae7bd18f6a6c82f8a7b0c', -1, 1748214772, 1748214772, '12e136a7', -9, 0, 0)

Line : 190
File : sessions.php