Apache2 error after change tautulli.conf

Hello everybody.

Yesterday i tried to make tautillu app work with the procedure in wiki :

sudo nano /etc/apache2/sites-enabled/Tautulli.conf

Replace it with:
<Location /tautulli>
ProxyPass http://localhost:8181/tautulli
ProxyPassReverse http://localhost:8181/tautulli
Require all granted

But apache2 crached just after.
Now, when i try : service apache2 star i have : Failed to start apache2.service: The name org.freedesktop.PolicyKit1 was not provided by any .service files

Do you have an idea to help me ?

Thanks a lot.