My friends at Plazes have made some changes to the unsupported, not-yet-released Plazes API that have had the unfortunate side-effect of breaking PresenceRouter. This is understandable, and shows what a folly it was to rely on a pre-release API to build the app. I’ve confidence that the functionality offered by the nascent API will return in some form sooner or later, and I’ll update PresenceRouter to match at that time. It was fun while it lasted ;-)
Update on August 29: just released a new version, v1.01, that should work properly going forward. Grab yours from the PresenceRouter download page.