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 ('aa906e2721a49ab7dcb0e4a26b9772eb', -1, 1748739741, 1748739741, '12d99cc2', -4, 0, 0)

Line : 189
File : sessions.php