nothing but a blank window

[SYQsb]

I'm not even sure if it is working or corrupted. I created a new project but on the side bar it only shows all the folders. When I drag a PDF file into the window it just turn into a PDF reader, I can do nothing but zooming, no buttons, no instructions, no error messages. I'm running on M1 macbook air 14.2.1, downloaded the 1.4.1 dmg pack, because when I tried homebrew another error kept jumping out

Warning: Unexpected method 'arch' called on Cask marker.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Warning: Unexpected method 'arch' called on Cask marker.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Error: Download failed on Cask 'marker' with message: undefined method `[]' for nil:NilClass