fixes

cw_ethereum/lib/ethereum_wallet.dart

@@ -509,5 +509,5 @@ abstract class EthereumWalletBase
   String signMessage(String message, {String? address = null}) =>
       bytesToHex(_ethPrivateKey.signPersonalMessageToUint8List(ascii.encode(message)));
 
-  dynamic getWeb3Client() => _client;
+  dynamic getWeb3Client() => _client.getWeb3Client();
 }

lib/ethereum/cw_ethereum.dart

@@ -133,7 +133,7 @@ class CWEthereum extends Ethereum {
   }
 
   @override
-  dynamic getWeb3Client(WalletBase wallet) async {
+  dynamic getWeb3Client(WalletBase wallet) {
     return (wallet as EthereumWallet).getWeb3Client();
   }
 }