This is because of the module setenvif not being enabled in your apache configuration.
You may be able to work around this issue by running the following commands:
cd /etc/apache2/mods-enabled/
sudo ln -sf ../mods-available/setenvif.load
sudo ln -sf ../mods-available/setenvif.conf
This is because of the module setenvif not being enabled in your apache configuration.
You may be able to work around this issue by running the following commands:
cd /etc/apache2/ mods-enabled/ available/ setenvif. load available/ setenvif. conf
sudo ln -sf ../mods-
sudo ln -sf ../mods-