The “Failed to fetch relayers” mistake ordinarily implies an issue with retrieving the listing of accessible relayers that aid the withdrawal method in Tornado Cash. This tends to happen for lesser used chains like Optimism or Gnosis. updateVerifier: Used to update the “verifier” used by the wise contract. In essence, https://fairnesscq.za.com/2024/09/23/the-importance-of-anonymity-in-ethereum-and-bnb-with-tornado-cash/