Cannot Delete In server AWS

I hosted my elastic in AWS but, I cannot delete index.

my elasctic version 1.7.1

Please describe this in more detail. Do you get an error message or what does "cannot delete index" actually mean?

I cannot delete my index, my index still exist

What exact commands you ran?

curl -XDELETE 'IP_ES:9200/index/'

Fantastic!

What is the response?
What do you see in logs?

it's not response

What do you see in logs?