Ok, I found the issue, there was another file with execution permission issues at
EcchiSensei-HalloweenSpecial/EcchiSensei.app/Contents/MacOS/lib/darwin-x86_64/EcchiSensei.
The same problem plagues all the packages. Now I can run.
it's true. we had some mac problems in the past. but they are gone since the beta of day 10+11.
our mac version now is stable. For unstable previous STANDALONE versions: we work on it.
Halloween special isn't a standalone version.
"Fapoween 2018" was puttet into the canon story of week 1 and ended up in an dream sequence.
Same goes for "Fapoween 2019" which will be also merged into "Week 2"