``` {"timestamp":"","level":"WARN","fields":{"message":"Failed to fetch mempool.space fee rate, using Electrum rate","mempool_error":"error sending request for url ([https://mempool.space/api/v1/fees/recommended)\n\nCaused](https://mempool.space/api/v1/fees/recommended)/n/nCaused) by:\n 0: client error (Connect)\n 1: invalid peer certificate: UnknownIssuer","electrum_rate_sat_vb":4},"target":"bitcoin_wallet::wallet","filename":"bitcoin-wallet/src/wallet.rs","line_number":1198,"span":{"buy_xmr":"BuyXmrArgs { bitcoin_change_address: None, monero_receive_pool: MoneroAddressPool([LabeledMoneroAddress { address: None, percentage: 1, label: "Your wallet" }]) }","method":"buy_xmr","swap_id":"<swap-id>","name":"buy_xmr"},"spans":[{"swap_id":"<swap-id>","name":"swap"},{"buy_xmr":"BuyXmrArgs { bitcoin_change_address: None, monero_receive_pool: MoneroAddressPool([LabeledMoneroAddress { address: None, percentage: 1, label: "Your wallet" }]) }","method":"buy_xmr","swap_id":"<swap-id>","name":"buy_xmr"}]} ```
