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 ('6806746a99de0152b5df2c71c9a7568c', -1, 1717009696, 1717009696, '0d3b318a', -9, 0, 0)

Line : 187
File : sessions.php