The same error does not occur in the English version of Visual Studio and Visual Studio for Mac. It seems to be a problem with the Korean version of Visual Studio.
The location of the archive that was actually created and the archive that you are trying to sign are different.
For example, the location created is "C:\Users\user-name\AppData\Local\Xamarin\iOS\Archives\2020-04-28\app-name 4-28-20 5.37 ∞ÿñφ¢ä.xcarchive" But the location to look for is"C:\Users\user-name\AppData\Local\Xamarin\iOS\Archives\2020-04-28\app-name 4-28-20 5.37 오후.xcarchive\Info. plist".
If you know the solution, please help.