You can no longer use your Ethereum-EOS-tokens. The EOS-contract on Ethereum is frozen. There’s also no way to register anymore. Nor can you move EOS ERC-20 tokens from Ethereum to the EOS Blockchain.
If you had any EOS ERC-20-tokens during the snapshot at the begin of June you should be good. Your tokens are on the EOS-blockchain. You’ll need your Ethereum private key to recover them. Be very careful with that!
You need the fallback method as you see above. That way your Ethereum private key will create your EOS-public key. You public EOS-address should start with the letters EOS…
You can use that keypair in tools like Graymass-wallet and Scatter.