Worrisome error involving user prop "s1_lastn_style"

[foxfirefey]

So, due to some difficulties with my VPS provider, I've had to reinstall Dreamwidth from scratch. I didn't mind! It was a great opportunity to brush up some of the installation documentation and reacquaint myself with the installation process. However, I've run into an awkward error involving user prop "s1_lastn_style" not existing in this new installation.

( More info here. )