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 ('06d2329edb5e55129c4a78d765a6541f', -1, 1560962700, 1560962700, '36f219c6', 21, 0, 0)

Line : 189
File : sessions.php