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 ('2a8a5f5b97c2bebb07d7deaf2d3012b6', -1, 1748411924, 1748411924, '12bcbc8f', -9, 0, 0)

Line : 190
File : sessions.php