UiPath Join DataTable Help Needed

I have this error, does anyone know how to solve this?

Here is the rest of the script

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Hey @audrxyx

Kindly show us the datatable which you are trying to join ?


Hello @audrxyx

Please make sure the datatables which you are trying to join are having a value in them.
For example if your datatables are DT1 and DT2, run in debug mode and check the values or you can use output datatable activity and print the datatables in the messsage box and confirm once.

Also the columns which you provided for the join shoulc be valid.