You didn’t provide the error so how we can know what is failing. Generally, work with query inspector and check what Grafana is requesting and what is receiving.
Query Inspector is a new feature that was added to Grafana v4.5. It shows query requests and responses.
This can be helpful if a graph is not shown or shows something very different than what you expected.
Depending on the data source the response will look different.
The Query Inspector can be found under the metrics tab inside panel edit mode.
First you should check and see if there is anything unexpected or wrong in the query Grafana sends to your database or in the response.
ex:
[imag…