is there any way to debug these type of tx errors that doesn't have a hash value?

If there is no transaction hash, there is no transaction :)

But i am sending a transaction to my contract

but i am not sure

Then there would be transaction hash

the thing is that the exact same code works in testnet with bnb and dai token

i don't understand why its not working in mainnet

i see the token i am using is extending the transferFrom function

i can still use IERC20(token).transferFrom(from, to, amountIn) to transfer Right?

does anyone know why this is not working?

There could be many reasons: Out of gas, wrong input, no enough balance. The most common one is not enough allowance (forgetting to approve tokens from => to)

yeah, you should call approve function to call transfer.

I think it will show the error if it was any one of them. But instead i am getting the error UNPREDICTABLE_GAS_LIMIT and there's no tx hash.

I am already approving my contract for the token

const approvingAmt = "100000000000000000000000000000000";
const allowance = await .inputTokenContract.allowance(
myWallet,
contractAddress
);
const approve = await inputTokenContract.approve(
contractAddress,
approvingAmt
);

hmm I see. I've never faced that error before but this could help: https://github.com/ethers-io/ethers.js/issues/1232

what is contractAddress there?

its my contract

its working on testnet

not working in mainnet?

nope

have only tried with one token

gonna try it with another token now

good idea

do you know tenderly?

you can debug on tenderly using transaction hash

so you will see where is error on transaction using tenderly.

Yeah tenderly is good. but can't use it since there was no tx hash.

what you mean? Did not you got transaction hash from metamask?

No, the error seems to happen before sending the transaction

according to this, of course

Have you tried changing your node provider?

no

there's no tx log or hash

i am wondering can you guys test token transfers with 0.001 wbnb or is that too low?

man i would go bankrupt before making this contract work