I've disabled proxy and replaced 'SQL server' internal db with SQLite, it works well for me, but 'ListingDate' couldn't be found at run-time, that's the question you asking? however, 'ListingDate' still show me yellow not found in VWR editor, I have no idea how to revise it further.
06:05 Deleting old data...
06:05 Extracting data with web browser agent v2.
06:05 Processing start URL http://www.jllproperty.us/en-us/fort-worth/retail-property-for-lease/victory-basswood/583542?ct=usd
06:05 No content found for ProperyUrl
06:05 No content found for ListingDate
06:05 Custom script error: Object reference not set to an instance of an object.
06:05 Starting export...
06:05 Generating export data...
06:05 Data extraction completed