Need help on signing up to being a Gan farmer plz help

[KinmanPack777]

Hi I wanna be a gan farmer and have tried signing up to being a gan farmer but there's just one thing I don't get in that last part it says "Proof of Identification (indicating your address)" and then says choose a file but I don't know what to do do I take a picture of adress or something plz I need help if there's any gan farmers looking at this post plz respond and tell me what to do

[DictaruraSrl]

I think that refers to a photo of your ID.