Could Not Find a Valid Diablo 4 License

Hey guys, I just bought Diablo 4 on Steam. I downloaded it, installed it, and now this error is showing up:

Could Not Find a Valid Diablo 4 License.

diablo iv licença

My game is legit, I don’t share the account, I’m logged into Battle.net, I don’t use any unauthorized programs or anything. How do I fix this?

Oh, I’m playing on a Windows 11 PC with an RTX 4070.

Thanks in advance for your attention.