This evening I was attempting to disable the guest account and something went awry.
Currently on boot Ubuntu enters low graphics mode. No specific error report.
What did I do? Before this error occurred I added a line of code in lightdm.conf to disable the guest account. I think I may have accidentally erased the contents of lightdm.conf. Not entirely sure.
I troubleshooted for the past hour using various suggestions from other Questions to no avail.