Grafana alert does not working

i’m using Grafana 5.0.4 with Zabbix plugin (3.9.0)

I set Grafana to alert in Slack (the test Slack message is working )
but
When i’m try to set a alert in Graph i received the follow erro:

Blockquote
firing:true
state:“alerting”
conditionEvals:" = true"
timeMs:“1.136ms”
error:“tsdb.HandleRequest() error Could not find executor for data source type: alexanderzobnin-zabbix-datasource”

Blockquote

Zabbix datasource does not support alerting