Stop the service and reset the data
sudo systemctl stop wardend
cp $HOME/.warden/data/priv_validator_state.json $HOME/.warden/priv_validator_state.json.backup
rm -rf $HOME/.warden/data
curl -L http://snapshots.liveraven.net/snapshots/testnet/warden-protocol/buenavista-1_latest.tar.lz4 | tar -Ilz4 -xf - -C $HOME/.warden
mv $HOME/.warden/priv_validator_state.json.backup $HOME/.warden/data/priv_validator_state.json
Restart the service and check the log
sudo systemctl start wardend && sudo journalctl -u wardend -fn 100 -o cat