[Flutter] Error occured!: JsonRpcError(code: 5000, message: undefined is not a function)

[Eddy-orbs]

I'm upgrading w3mService to appKit (1.4.0).

When I execute

appKitModal.launchConnectedWallet();
await appKitModal.requestWriteContract(...);

Metamask launched but does not show any tx approval and closed few seconds later.
Then, my app gets "JsonRpcError(code: 5000, message: undefined is not a function)".

Same code with w3mService works fine. (all parameters checked during debug mode)
What am I missing?

Log below:

D/VRI[MainActivity](21762): visibilityChanged oldVisibility=true newVisibility=false
I/flutter (21762): ┌──────────────────────────────────────────────────────────────────────────────────────────────
I/flutter (21762): │ 2025-02-24 20:51:20.408196 ❌ [RelayClient], _connect error: WebSocketChannelException: SocketException: Failed host lookup: 'relay.walletconnect.org' (OS Error: No address associated with hostname, errno = 7)
I/flutter (21762): └──────────────────────────────────────────────────────────────────────────────────────────────
E/libEGL  (21762): called unimplemented OpenGL ES API
I/flutter (21762): ┌──────────────────────────────────────────────────────────────────────────────────────────────
I/flutter (21762): │ #0   _TransactionHandlerScreenMetamaskState.didChangeAppLifecycleState (package:orbs_staking_app_with_klip/screens/tx_handler_screen/transactoin_handler_metamask.dart:174:14)
I/flutter (21762): │ #1   WidgetsBinding.handleAppLifecycleStateChanged (package:flutter/src/widgets/binding.dart:1030:16)
I/flutter (21762): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter (21762): │ 🐛 didChangeAppLifecycleState1: TxConfirmResult.none
I/flutter (21762): └──────────────────────────────────────────────────────────────────────────────────────────────
I/flutter (21762): ┌──────────────────────────────────────────────────────────────────────────────────────────────
I/flutter (21762): │ #0   _TransactionHandlerScreenMetamaskState.requestWriteContract (package:orbs_staking_app_with_klip/screens/tx_handler_screen/transactoin_handler_metamask.dart:134:14)
I/flutter (21762): │ #1   <asynchronous suspension>
I/flutter (21762): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter (21762): │ ⛔ Error occured!: JsonRpcError(code: 5000, message: undefined is not a function)
I/flutter (21762): └──────────────────────────────────────────────────────────────────────────────────────────────
E/libEGL  (21762): called unimplemented OpenGL ES API

The last excpetion was thrown from Reown library.