Error add data source in grafana

Grafana Configuration
,
1

Hi.
im new for grafana

i had trouble in my grafana development company
I cannot add data source from my elasticsearch.
Its always show error

No date field named @timestamp found

please help.

there is my log in grafana.log

t=2020-03-09T12:46:10+0700 lvl=info msg="Request Completed" logger=context userId=1 
orgId=1 uname=admin method=GET 
path=/api/datasources/proxy/1/9/3/2020og39tpagi395-2015.05.20/_mapping status=400 
remote_addr=100.100.200.128 time_ms=2 size=118 
referer=http://100.100.200.151:3000/datasources/edit/1/?gettingstarted
t=2020-03-09T12:46:26+0700 lvl=info msg="Request Completed" logger=context userId=1 
orgId=1 uname=admin method=GET path=/api/datasources/proxy/1/fi9/3/20200b0pagit- 
7.6.0-2020.03.05-000001/_mapping status=400 remote_addr=100.100.200.128 
time_ms=2 
size=125 referer=http://100.100.200.151:3000/datasources/edit/1/?gettingstarted