ACME-Client security hash- Assign activity issue

Hi,
I am on Advance training assignment - ACME - Client security hash .

I am getting “Assign: Object reference not set to an instance of an object.” error could you please assist me where I have gone wrong.

@NagalakshmiT

Welcome to the uipath community.

Check whether it’s scraped data properly or not ? And also check arguments once.

Hi , welcome to the uipath communtiy forum
TransactionData Datatable is either having null or you might have missed passing the TransactionData variable at screenscrapping output
Or might have missed passing the argument if you are passing the argument between different worlflows

If all above are correct and you are still getting error
Then go to variables pane , at the default value of TransactionData variable give it as
New system.data.datatable