Flows information Miss in Elastic Index

[nikopuf]

ntopng -i ens192 -F "es;ntopng;ntopng-%Y.%m.%d;http://120.120.1.202:9200/_bulk;" --http-port 4000 --ignore-vlans this is how i run ntop to push data in elastic but when i go in my elastic index i didnt fine ja3 ja3s information in index,

what is the recommend version of elastic search i am using 7.16.3?

OS: ubuntu 18.04