MacOs GUI app broken

[lgomastr]

When trying to boot up the MacOS Kuriimu app, it gives me this error:
"You can’t open the application “Kuriimu2” because it may be damaged or incomplete."
There's also a big cross on the icon.

Did I do something wrong while installing it, or is it just a natural bug?
I am running on a x64 device with the Net Core Runtime 3.1.6.