If seed is greyed out and the wallet is asking for authenticator codes, you're running a 2FA wallet... The is no way to find the seed from this wallet... It is not stored in the wallet file.
If you no longer have the 12 word seed phrase, then you have no way to recover or restore the wallet...
If resyncing the time in your Google authenticator app does not work, then you chances of recovering the coins aren't great