Hey there, I'm really sorry to hear about that.
It sounds like you might have accidentally unlinked your PSN and EA accounts. Once the accounts are unlinked, there's usually a cooldown period before you can link them again. If that's what happened, unfortunately, we have no way to bypass this cooldown period.
If that's not the case, or if you have a different PSN account that you may want to use and link to your EA account, you can try to do so by following the steps in this article:
https://help.ea.com/en/articles/ea-account/ea-account-linking/
Let us know if you have any questions.