SDLXLIFF Converter App stopped working (both 2019 and 2021 versions). This is the error that I am getting: object reference not set to an instance of an object

Question

Here is the screen shot of the error with additional details:

and then this one pops up when I click on Continue and then anywhere with tin the app:

Many thanks, 
 Dmitry

Oana Nagy · Answer

Hello Dmitry Babushkin , 
 Without seeing the file(s) it is hard to say what might be causing the problem. 
 Is this happening with just the one file? or multiples? 
 Perhaps you can share a problematic file with us?

Trados Studio > 1. Trados Studio

SDLXLIFF Converter App stopped working (both 2019 and 2021 versions). This is the error that I am getting: object reference not set to an instance of an object