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 ('86ef7881c2648c2ba7618a980084f0c6', -1, 1717397814, 1717397814, '340f2b6b', -10, 0, 0)

Line : 187
File : sessions.php