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 ('0e0de7d0b523a480111f3ba1c07d93f9', -1, 1560962936, 1560962936, '36f219c6', -6, 0, 0)

Line : 189
File : sessions.php