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 ('71bf655a5a93f4da8ed2c68b5f550d65', -1, 1563499884, 1563499884, '12e8637b', -9, 0, 0)

Line : 189
File : sessions.php