Update to 1.9, custom plugin stopped working

After updating to 1.9 today my custom plugin just displays " No data for this graph. "
I wrote it using the ExampleUI Plugin about a year ago, can you tell what i need to change?

Thanks

Sorry not sure what is happening without seeing your code… I don’t remember we changed anything regarding widgets/plugins - were you updating from 1.8.4 or earlier version?