How to avoid "error="tsdb.HandleRequest() error Could not find executor for data source type: jasonlashua-prtg-datasource"

Hey there,

i have two problems at the same time. One of the problems is displayed in the dashboard if i have configured an alert rule.

t=2019-10-12T00:01:35+0200 lvl=eror msg="Alert Rule Result Error" logger=alerting.evalContext ruleId=2 name="CPU Last alert" error="tsdb.HandleRequest() error Could not find executor for data source type: jasonlashua-prtg-datasource" changing state to=alerting

The second problem is, that the picture which is send to me via telegram, shows me no metrics or graphs. The picture is emtpy.

I hope someone can help me.

What kind of datasource you are trying to use?
Please consider that only the following data sources are supported right now for alerting: Graphite , Prometheus , InfluxDB , Elasticsearch , Stackdriver , Cloudwatch , Azure Monitor , MySQL , PostgreSQL , MSSQL and OpenTSDB .

We are using the PRTG datasource. Have you an idea how can I fix the problem?