phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d9b15c5d2b2c5f054d769a221e1686a0', -1, 1737480464, 1737480464, '03913688', 6, 0, 0)

Line : 187
File : sessions.php