After restarting my Mac 10.12.6, I was asked to install the new AdblockPlus 2.0.1. I did and now it is not working.
Translated in english it says in the Safari settings/extensions:
"Adblock plus" does not have permissions to read or transfer content from websites.
What to do? (The old one worked just fine until I restated the computer and followed the advice to reinstall ABP)