We are aware of an issue that is affecting Last.fm scrobbles and Libre.fm scrobbles.
We previously sent all requests to Libre.fm and that forwarded the scrobbles to Last.fm.
Libre.fm is experiencing problems, we have reported the issue, but we don't know when it will be fixed.
We are therefore, working on a fix to send scrobbles directly to Last.fm and Libre.fm separately, this reduces the single point of failure at Libre.fm.
As a bonus, we will be adding a new feature, we will be scrobbling albums, so it is more important than ever to make sure that the album data is entered and correct for each song on your radio station.