ME3 (2012) won't start

As in title.
"We could not activate Mass Effect 3 (2012 edition) on this computer using the Origin account you provided. Please locate your product key to activate the game using your Origin Account".
When pressed "Enter Product Key", it says lie like that:
"We've noticed your computer is currently offline. To activate your game on this computer using your Origin Account, you'll need to connect to the internet".

I'm connected to internet.
Yes, I deleted licence folder.
Yes, I did buch of stuff in cmd.

Yes, I did this: https://help.ea.com/en/help/faq/how-to-clean-boot-your-pc/

yes, I did this: We could not activate Mass Effect 3 on this computer | EA Forums - 11874187

Yes, I was talking to EA bots in chat, they weren't helpfull.
Yes, I played on this computer and on this windows before (I have almost 140h total in this game).

I wanted to play multi with friends, otherwise I wouldn't care, but Legendary edition is missing key feature.

Yes, I'm angry, mostly because of useless bots of EA.

Please help.