Problem with G and C characters for Italian license plates

I integrated Openalpr into an iOS app project using this project example: https://github.com/twelve17/openalpr-ios.

I would to use Openalpr to recognize the Italian license Plates. So, into my settings I used eu country.

I have a problem: When I try to recognize license plates that contain G characters, the result is not correct because the algorithm confuses G character with C character. How can I solve this? Have I to change something about my configuration? Have I to change something about training?

I'm only interested to Italian license plates recognition.