I was trying to look at one of Kadana's Quin, and I got this message:
QuoteError: No Breed ID. Please report this error to Silvanon.
http://www.secundi.net/critterpage.php?ID=52882
In this instance the critter is showing errors because the critter no longer exists in the system. It was likely either a wobble or a gidget that got traded in and eventually deleted.