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 ('64186e0424d048b7675cc70943e56078', -1, 1569030122, 1569030122, '22ccb0bd', 34, 0, 0)

Line : 189
File : sessions.php