Issue in Data Tables widget, while trying with associated tables.

Hi, I'm using the DataTables widget for column sort order. The direct attribute values are displaying fine, but when trying with the associated tables, the data is not getting displayed in the grid. And when I click on that particular column it is showing the following error. error:  'false' is not a valid entity. I copied the reference name from the domain model itself and pasted it in the Reference name column.   
1 answers

Did you include the module name in the reference? It must be in Module.Association_name format


Does the user have sufficient access rights to display the associated tables?