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 ('a88d0bc05357ca7a9b0848ca3760d7f6', -1, 1717203707, 1717203707, '12bc4042', -8, 0, 0)

Line : 187
File : sessions.php