Can you please stop making multiple posts on the same issue (see the thread you are already getting help in: https://moodle.org/mod/forum/discuss.php?d=331249#p1334302). It only fragments any advice and help you are given and clogs up the forums.
Installing and upgrading help
404 url not found on server error
Ova je rasprava zaključana, pa više nije moguće odgovoriti na nju.