Mac Big Sur, LaunchParadoxosModManager.command gives error "sh: bin/LaunchParadoxosModManager: No such file or directory"

[god-machine]

I have been playing around with this for a couple days now, and I cannot for the life of me figure out what is wrong. I have downloaded both the indev and latest stable 0.8.2 versions from GitHub. Both give the same error:

This is the parent directory, which is in my Downloads folder:

This is the bin directory; I have tried it with supported_games.json both in the parent directory and here in the bin directory:

I have not edited the scripts for any of these:

I have run out of ideas. Can anyone please help?
OS: Mac Big Sur, Beta 11.3
Java version: So far as I know, I have the latest Java version. It popped up an update a week or two ago, and I know I installed it without any errors. If anyone can tell me how to check the version, I will gladly grab that.
DebugLog.txt: I could not find it.

Everything is exactly as downloaded from here, run from the Downloads folder and tried from the Paradox Interactive folder.

Thank you for any advice or assistance anyone can offer.