Right side events panel empty

I created a Status Online Notification to a device and set the channels to Web and had linked the device to the notification.
I see the device is Online but why the right side events panel still empty?

forgot to info my traccar.xml

     <entry key='event.enable'>true</entry>
    <entry key='event.ignoreDuplicateAlerts'>true</entry>
    <entry key='processing.computedAttributes.enable'>true</entry>
    <entry key='processing.engineHours.enable'>true</entry>

what I missed?