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 ('732b50869b13a7a8abc2a16168fc304b', -1, 1766047435, 1766047435, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php