Apps from Mac App Store crash when started (CODESIGNING error)
Today I reinstalled macOS High Sierra on my MacBook Pro (Mid 2010). Now all apps I install from App Store crash immediately when being started (e.g. Pages, Numers, Bear, ...). Apps with a installer from the web still work, as well as all the apps coming with macOS itself.
This is what the report says:
I tried reinstalling macOS once again, I "repaired" the system SDD ... problem persists.
Any solutions?
MacBook Pro 13″, macOS 10.13