I can add almost every game to my library except Fifa 20 and 21 
Hey @shr3kk69 for issues such as this you will need to speak with one of our phone or chat support advisers who will be able to advise you further.
You can contact our live support at help.ea.com.
To speak with a chat or phone adviser:
Click on your product Origin
Then select 'PC
Manage my Account'
Finally, you can choose to begin a chat or request a call back.
Darko
Still the same
I tried all fixes available online: clearing cache, using vpn, using mobile data, but all did not work. I even gave my account to my friend who is living in another country, but it still did not help.
I think this error is related to the account.
I even tried downloading ea desktop app to add game to collection, but it just keeps on loading.
Community ManagerHey @shr3kk69 for issues such as this you will need to speak with one of our phone or chat support advisers who will be able to advise you further.
You can contact our live support at help.ea.com.
To speak with a chat or phone adviser:
Click on your product Origin
Then select 'PC
Manage my Account'
Finally, you can choose to begin a chat or request a call back.
Darko
Did you fix it? I have the same error as you. I can't add FIFA21. My account EA play hasn't expired yet
