I AM SORRY FOR THE DELAY
It appears that when YandereDev’s hard drive crashed, he downloaded a later Unity version than the one for previous builds, so the .app (a native Unity for Mac .app, not Winebottler etc.) which had an older engine version won’t accept the new versions data files. I had to use the Unity engine to generate a suitable .app which works.
Here you go!
All links with no shortener this time.