I just had the same problem while upgrading from openSUSE 13.2 to openSUSE Leap 42.1.
The problem is not a missing module in the apache2-configuration.
The problem is the upgrade from apache 2.2 to apache 2.4.
"Order" and "Allow" have to be rewritten as follows (example):
in 2.2:
Order allow,deny
Allow from all
in 2.4:
Require all granted
You can find more options an examples here:
Upgrading apache2
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