phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6f3e18a7500eb72f31ae15269ab1bcf0', -1, 1737604871, 1737604871, '12610e55', -11, 0, 0)

Line : 187
File : sessions.php