I just updated one of my projects (https://www.frank-thomsen.eu/) I manage to Drupal 7.50 and after that I get all the time an 403 error like that
Forbidden
You don't have permission to access / on this server. Server unable to read htaccess file, denying access to be safe
Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.
when I use 644 or 744 on every file and an 500 error, when I change the .htaccess to 755.
I have tryed to use a backup. Nothing!
So also the Login-Page doesn't work. And like I said I cannot find the error! A test-page in a subdirectory works -> https://www.frank-thomsen.eu/test/hhvm_test.php
So, what could it be?
Greetings and best wishes!