Uninstalling MultiSite - 500 Errors on stories

Tonight I used this guide to uninstall MultiSite on my site. After editing .htaccess and wp-config.php, clicking links returned a 500 Error. I just restored both files so it's back with Multisite enabled.

Is this because I hadn't yet edited my database? I didn't want to embark on that if I had already messed something up so I just wanted to double check. :slight_smile:

Additionally, what will happen to my permalinks after I disable multisite? Will the /blog path be removed? If so, will stories still redirect? Is this the problem I just ran into?