Installer breaks if username is not in English / With non-english locale?

First of all, I am sorry through the translator because I am Korean.
The current problem is that there is an error during installation through the mode installer.
TypeError: '>=' not supported between instances of 'UnicodeDecodeError' and 'int'
It's an error statement written on the terminal.
- My operating system is [Windows]
- I installed the game [2 weeks ago]
- I am trying the [Full Patch]
- I installed the game [using the Automatic Installer (steam)]
- My computer is a [Gaming desktop]

Sorry for asking Github, not discode, because I am not good at English.
I ran it in Safe Mode, but the error came out the same.
I really want to do it, but I don't know what to do. Please help me.

The error suggests a Unicode handling issue in the installer script, likely when processing a non-English username or locale. Look at the main installer entry point and trace where file paths or user input are decoded. Check for string comparisons or encoding assumptions. Reproduce by setting a non-English username or locale on a test system to see where the decode error originates.

Written by the indexing model from the issue text.