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 ('f59b66fd0fccc9b56d935c63bfbecac4', -1, 1748146734, 1748146734, '0d3a818a', 30, 0, 0)

Line : 190
File : sessions.php