May I sell...

Hello,
...can anyone tell me?

I’ve already made many little Mausi mice from the pattern
“Crochet pattern for Gabi’s Mausi Paulinchen, approx. 40–45 cm tall”
because I think they’re so lovely.
Am I allowed to sell my handmade items? 
I’d also like to credit the author of the pattern.

You’ll have to ask the author herself. You can message her directly using the message feature (Contact). 

Thanks for your reply!
I finally took the time to take a closer look at the crazypatterns website.
It’s such a fun site to browse!!
I asked the author and got the go-ahead to sell them!
Best regards
Beate