It works for me. It created the "date" folder, which contains the assets.
My theory why it didn't work for you:
1. You have very little RAM (turn off all other applications)
2. Your file path contains non-ASCII characters (russian characters in your username path perhaps). Move the game install files to C:\test\ for example and put the rpaExtract.exe in the same folder as archive.rpa, then follow the video instructions.
If it still doesn't work, you can try to run the tool in a command line or powershell .\rpaExtract.exe archive.rpa so you check whether there are any error messages when it crashes.