Hello, I want to introduce you to the error, what should I do?

https://imgur.com/a/U5bwTG4

Before that, the game crashed due to the fact that there was no beep.wav file, I created it using a copy of beep 3.waw.

Additionally: I have installed an unofficial add-on that translates the game into my language. Could this be due to a mistake?

I also want to ask you how to find out the current version of the mod, and is it possible to install previous versions of the mod?