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 ('a2300f9f83ca6844dc8dec94168d1be7', -1, 1563573018, 1563573018, '12d16807', -4, 0, 0)

Line : 189
File : sessions.php