There is a new version of JustScrobble available. It fixes an issue ("The TrackName field is required."), which occured when a track inside the cache had no title.
Poweroff received an update to fix an error which occured when the clicking on the tray icon and Winamp wasn't selected as event.
JustScrobble received an update to fix an error which occured when the track number was non-numeric and not in the form of "1/2" either.
JustScrobble received an update to work-around the "Token expired. Please return to JustScrobble and try again."-issue caused by the broken API of last.fm. With version 18.104.22.168 JustScrobble uses the authentication-method for mobile applications, which requires entering the username and password, as this one currently works. The recommended way for desktop applications to authenticate is broken since the redesign of last.fm. Version 22.214.171.124 is still available for download, though.