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 ('0ffb971662bcd85158f1cc284689b3fa', -1, 1556222853, 1556222853, '365b79ff', 23, 0, 0)

Line : 189
File : sessions.php