I am coding an application to learn some fundamentals about blockchain and NFT and I am encountering the following error.

Unhandled Rejection (Error): call revert exception (method="fetchMarketItems()", errorArgs=null, errorName=null, errorSignature=null, reason=null, code=CALL_EXCEPTION, version=abi/5.5.0)

This error only occurs when I change my smartcontract deploy. If I deploy to the localhost will work just fine, if I deploy to the mumbai, will not.

I think that this might be related to the "npx hardhat node", because it starts a local node as stated "Started HTTP and WebSocket JSON-RPC server at http://127.0.0.1:8545/".

I have configured the same RPC to the JsonRpcProvider and my wallet.

If it is indeed the node. How could it be run in the mumbai network?