CoudWatch logs not working getting error 500 in query inspector

Grafana Cloudwatch
1

getting Error in Query inspector:
esponse:Object
message:“An error occurred within the plugin”
messageId:“plugin.downstreamError”
statusCode:500
traceID:“”

but if i click on cloudWatch logs insights then on same query getting logs there.

2

Check grafana server logs pls.

3

Thanks, issue was regarding to my IAM policy StartQuery not in permissions.