Version Missing

You say that "We display the Pi-hole version on the bottom of the Web interface."

On my installation the info is blank.

Pi-hole Version Web Interface Version v1.1.7
Pi-hole Version Web Interface Version v1.1.7

How else do I find out?

Can you run cd /etc/.pihole and git describe and post the output of the last command here? That is how the web interface finds it.

pi@raspberrypi:/etc/pihole $ git describe
fatal: Not a git repository (or any of the parent directories): .git

You need a period in the directory name. The one with the period is the Git repository that we pull to.

pi@raspberrypi:~ $ cd /etc/.pihole
-bash: cd: /etc/.pihole: No such file or directory
pi@raspberrypi:~ $

Can you pastebin the contents of the file /etc/pihole/install.log? You should have a /etc/.pihole directory... via @pastebin

OK, that's an incredibly old copy of the install log. it should look more like this:

When did you last run curl -L | bash ?