I updated my Mac from 10.12.6 "Sierra" to 10.13.6 "High Sierra".
Now every app that was installed using the App Store is not able to run anymore.
If I install them like here (5th item in list):
Then it still won't work. I have signed out of the App Store completely and signed in again - that resolved nothing. If I go to another tab, or re-open the App store then it shows up again like I didn't install it.
If I launch the apps from a terminal then I get:
Which seems to be the code for a SIGKILL
Default action: Abnormal termination of the process.
Description: Kill (cannot be caught or ignored).
I tried fixing with
chmod +x for the executables, but it does not fix the problem.
At this point I don't know what to do except reinstalling my whole OS. Can someone help?