I did some investigating and it looks like updating the extension borked something in the SQL tables. I compared the SQL tables of a fresh Flarum installation with the latest polls and my primary Flarum installation. Looking at the primary's SQL tables, I am missing forum_polls and forum_poll_votes. Unfortunately, Bazaar also refuses to uninstall Polls without erroring out, too. Log incoming...
I swapped around releases several times manually so sorry for this particular log file's version being off. Like 1.0.0, I got the same error output with the current release as well.