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 ('de16e5925a45a9f14ac423e6c7e6650a', -1, 1748542807, 1748542807, '12bc56bd', -9, 0, 0)

Line : 190
File : sessions.php