Twitch Affiliate Tax Interview?

We
- in Twitch
1

I have the problem that he always says that the address line 2 is missing but unfortunately I don't know what to enter there who can help me

Re

Nothing at all if it is not needed.
It also clearly says: OPTIONAL. So it's not a mandatory field.

From there… Why do you want to become an affiliate voluntarily & give up all rights to your stream?