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 ('53c54ce6e5a83077076dabe1dc3c676f', -1, 1766309561, 1766309561, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php