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 ('ce869a4f943607a809f7edcd73cb7f4c', -1, 1717110800, 1717110800, '12754a67', 1, 0, 0)

Line : 187
File : sessions.php