For anyone coming behind me looking for a solution, the DBRepair tools did not shrink the database back down. What worked was running these commands manually (you may have to adjust DB location if you stored it somewhere else). Shrunk my 24Gb database back to 2Gb in moments.
c:\>"C:\Program Files\Plex\Plex Media Server\Plex SQLite.exe" "%LOCALAPPDATA%\Plex Media Server\Plug-in Support\Databases\com.plexapp.plugins.library.db"
sqlite> delete from statistics_bandwidth where account_id is NULL;
sqlite> VACUUM;
sqlite> .quit
From this: Post from FordGuy61
