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) VALUES ('66bba0d4853f66d1cf0a5cd1f3131e3e', -1, 1714661258, 1714661258, '12df7ddb', 7, 0)

Line : 158
File : sessions.php