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 ('8f8b22fa7fa97c6a2a880986e461d217', -1, 1748789794, 1748789794, '038a25ad', -9, 0, 0)

Line : 190
File : sessions.php