Getting a 'dynamic data source' error using FreshBI connector for Xero

Hi everyone

I have purchased a xero connector developed by Fresh BI. 

This works fine on powerbi desktop and Im able to generate my dashboards.

But as soon as i publish and try to set up auto-refresh, I get an error saying

'The dataset includes a dynamic data source. Since dynamic data sources aren't refreshed in the Power BI service, this dataset won't be refreshed.'

There are no dynamic elements to the data source as far as im aware. Any help would be much appreciated.

Thanks

Ali