Sorry for the late response. I tried multiple times to replicate the issue but still to no avail. Let’s try one last thing: remove the sandbox evasion checks and see if that makes the backdoor work. You said you are running this on a real computer and not a VM, so the sandbox evasion might be getting a false positive rendering the backdoor useless.

Head to line 462 on the code/discord/main.py file and comment the if-statement and make sure to un-intend the rest of the code below the if-statement.
Check out the screenshot I supplied to see how it is supposed to look.

Try to generate a new backdoor this way and try to run it on the target. You will not need to click this time to activate the backdoor.

Let me know how it goes.