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 ('82b55ec3adf6571a08d15de0fcb4d3f5', -1, 1749047054, 1749047054, '0316700a', 2, 0, 0)

Line : 190
File : sessions.php