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 ('c227c706c82d9269a7d4168d4d5357e4', -1, 1749750482, 1749750482, 'd849d848', -9, 0, 0)

Line : 190
File : sessions.php