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 ('b61febf80840f189a3891c50d539b0a5', -1, 1717021000, 1717021000, '12de1b82', -4, 0, 0)

Line : 187
File : sessions.php