Environment - Local (wt-stage)

1] Enter below URL in browser.
https://10.0.2.120/api/app/TourListing/ListTours?requestFrom=wRnQ7Y%2fZWlCOXjmz9IS4jw%3d%3d&userName=%2bsj2KXYNrgm8O4Va%2bHPUTQ%3d%3d&password=T6NiPfpN8kLQSGDeUamNAw%3d%3d&corporationID=9587&entityType=Plac&entityID=3
2] Select a tour from drop down click on "Assign Tour" button.

Actual Result:
"Object reference not set to an instance of an object." error is displaying and candidate not getting added to WT.
Expected Result:
Candidate should be get added to WT without any error.
Note - We checked for error log but no error log get generated for this.
Cc: Saurabh Sablaka, Prasad Pise