I am using getdatasubsetdownloadlinkfromrule and following the steps in document

I am using getdatasubsetdownloadlinkfromrule and following the steps in documentation.
forum.appian.com/.../Download_DataSubset_Plugin.html

When I complete selecting the filter, URL is getting generated but when I click on the link, 500 - Internal Server Error is showing up. We tried several solution provided in other post but nothing worked. We were forced to move the report to a process model using a different plugin. Attaching the code snippet here. Appreciate any help.

Report_HomeScreen.txt

OriginalPostID-164135

OriginalPostID-164135