080243 : Cannot find field
The layer selected from the Geography Level parameter must be a valid Business Analyst dataset (BDS). Current dataset will be either "ArcGIS\Business Analyst\Datasets\USA EBIS.xml" if "USA (ESRI)" is chosen in the Business Analyst options or "ArcGIS\Business Analyst\Datasets\Canada ESRI.xml" if "Canada (ESRI)" is chosen. This error is occuring if the selected dataset cannot be found.
The dataset is either corrupted or not a standard BDS layer. Verify that the dataset exists by navigating to the following directory on the local machine where Business Analyst is installed ...\Program Files\ArcGIS\Business Analyst\Datasets.