Courier Fetch: 10 of 185 shards failed

Hello, I have this problem when i connetc to elasticsearch from Kibana,

Courier Fetch: 10 of 185 shards failed.

I not can solve problem,

I add this line to file elasticsearch.in.sh

ES_HEAP_SIZE=3G

but it not solve the problem

Help me thanks!!!

Check your ES logs, there should be more explaining why there.

Ok ok i have one error how: Not Mapping default ...

I did not find the solution

I had to reinstall everything,
I hope not happen again

thansk

If you provided the complete error we probably could have helped with a solution that didn't involve reinstalling.