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 ('5d47d4ec42b21d0ef55e402228bbe37c', -1, 1717360704, 1717360704, '0386674a', -4, 0, 0)

Line : 187
File : sessions.php