phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a17f83f0d9fa23e3164516b9c54d2c01', -1, 1717429664, 1717429664, '12bf7ffd', 1, 0, 0)

Line : 187
File : sessions.php