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 ('87d9b60411f4e415e575ead7db81aa3b', -1, 1716902999, 1716902999, '340eb0ef', -4, 0, 0)

Line : 187
File : sessions.php