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 ('a80bcec51b8b01dc0f727eed42292dc8', -1, 1561003391, 1561003391, '36a11ff7', 22, 0, 0)

Line : 189
File : sessions.php