Datasource named zabbix was not found

I don’t know how to do?It can’t show graph and remind error Datasource named zabbix was not found.
this is log:t=2017-07-02T11:26:30+0800 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/dashboards/db/zabbix-server-dashboard status=404 remote_addr=219.157.145.193 time_ms=2 size=33
t=2017-07-02T11:34:03+0800 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/dashboards/db/zabbix-server-dashboard status=404 remote_addr=219.157.145.193 time_ms=2 size=33
t=2017-07-02T11:54:42+0800 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/dashboards/db/zabbix-server-dashboard status=404 remote_addr=219.157.145.193 time_ms=3 size=33
t=2017-07-02T11:56:16+0800 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/dashboards/db/zabbix-server-dashboard status=404 remote_addr=219.157.145.193 time_ms=2 size=33
t=2017-07-02T11:59:34+0800 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/dashboards/db/zabbix-server-dashboard status=404 remote_addr=219.157.145.193 time_ms=2 size=33

Why do you have a ` in your data source name? I suspect that might be the reason. Try renaming your data source and removing the tick from the name.

If you just installed Zabbix, then you might have to restart your Grafana server.