Club Penguin Bugs!

While waddling around on Club Penguin today I decided to check my stamp book. As I was searching my book I noticed that the yellow and white puffle pin, mermaid shell pin and Brazier pin, were called 'undefined'! Note, this only happens on Portuguese. Take a look:

Crazy bug right, I wonder how Club Penguin can let so many bugs happen! Why do you think these bugs have appeared? Comment and tell me ~Happyblue128.