Getting Details: client.request is not a function Version: viem@2.8.18 when I call a function using readContract

[pegasus4me]

Hello,

I try to execute a function with readContract method using viem but I always get

Uncaught (in promise) Error: An unknown error occurred while executing the contract function "getStakeAmount".

Raw Call Arguments:
 to:    0x814b58712ba7B2fC356B1dcC71193c651BC02476
 data:  0x0c2eb40300000000000000000000000068152ec3cc9c67ca3a7201f6bf5b8ab8943f042c

Contract Call:
 address:   0x814b58712ba7B2fC356B1dcC71193c651BC02476
 function:  getStakeAmount(address staker)
 args:                    (0x68152eC3cc9C67cA3A7201f6BF5B8aB8943F042C)

Docs: https://viem.sh/docs/contract/readContract
Details: client.request is not a function
Version: viem@2.8.18

here his the function I try to execute that output me this error message

export async function SbrStakedByUserAddress(
    caller: `0x${string}`,
): Promise<bigint> {
    try {
        const sbrStakedByUser = await readContract(config, {
            abi,
            address: "0x814b58712ba7B2fC356B1dcC71193c651BC02476",
            functionName: "getStakeAmount",
            args: [caller],
        });
        return sbrStakedByUser;
    } catch (error: any) {
        let message = "Unknow error";
            if (error instanceof Error) message = error.message;
            throw new Error(message);
    }
}

here is my config.ts file

import { Config, createConfig, http } from 'wagmi'
import { arbitrumSepolia, arbitrum } from "wagmi/chains";
import { getDefaultConfig } from "connectkit";
import { Account, Chain, Client, Transport } from 'viem';

export const config = createConfig(
    getDefaultConfig({
      // Your dApps chains
      chains: [arbitrumSepolia, arbitrum],
      transports: {
        // RPC URL for each chain
        [arbitrumSepolia.id as number]: http(
          `${process.env.API_KEY as string}`,
        ),
        [arbitrum.id]: http()
      },
  
      // Required API Keys
      walletConnectProjectId: process.env.WALLETCONNECT_PROJECT_ID as string,
  
      // Required App Info
      appName: "Sabre DAO",
   
    }),
  );

I didn't found anything on google about this error
thanks for your help