Why doesn't scss compile in sublime text 3?

Question

Sass

Hello colleagues!
I use sublime text 3 and atom. I decided in ST3, as well as in atom, to work with .scss files.
Ruby is installed, registered in Windows 10 environment variables.
For ST3, I installed the SASS and SassBeautify plugins.
Created a style.scss file in the css folder of the project.
I registered one single line in it .class{}
. Now I want to compile the .css file. I use Ctrl+B - no result, just save the .scss file (SassBeautify is installed!) - no result.
I go to the console and see:
Traceback (most recent call last):
File "C:\Users\user\AppData\Roaming\Sublime Text 3\Installed Packages\SassBeautify.sublime-package\SassBeautify.py", line 202, in
File "C:\Users\user\AppData\Roaming\Sublime Text 3\Installed Packages\SassBeautify.sublime-package\SassBeautify.py", line 205, in check_thread
File "C:\Users\user\AppData\Roaming\Sublime Text 3\Installed Packages\SassBeautify.sublime-package\SassBeautify.py", line 216, in handle_process UnicodeDecodeError
: 'utf-8' codec can't decode byte 0xad in position 15: invalid start byte
but I don't understand anything here.
What is happening, what did I do wrong and how should I do it right?