Errors and Failed transactions during name registration.
Wallet connection/browser issues can sometimes break the flow of registration, as seen through repeat or failing commit transactions.
To resolve this and restart the registration process try either of the following:
Clear your browser cache, reconnect, and restart the registration process.
Begin again using a different browser or switching to incognito/private mode.
Or register using the legacy UI at legacy.ens.domains.
Note: If your wallet has pending transactions you will need to clear/cancel these first. Read more in this article.