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 ('ad6f5b31f2675e8d1d371b8333760ac1', -1, 1748538417, 1748538417, '03934f44', -9, 0, 0)

Line : 190
File : sessions.php