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
اس بحث کو بند کر دیا گیا ہے لہذا آپ اس کا مزید جواب نہیں دے سکتے۔