Cannot approve or sell token swapExactTokensForTokens: transaction fails (not a honeypot)

Question

I am trying to sell a token (DOBO). Buying DOBO is no problem and it goes through. But I cannot sell it. I get a failed transaction, but no error message on node.js (see https://bscscan.com/tx/0x2a1e3af0c800dc1280c5f5a7e45cdb1a8914f2dcd66a63cd44ba397411a30442). I have sufficient DOBO and sufficient BNB in my wallet. At first I thought it is because DOBO was not approved on Pancakeswap. I tried implementing approval in code (see below), but that didn't work. I eventually approved it manually, but I still get a failed sell transaction.

Why can't I approve the token sale? Why do I get an error when trying to sell the token?

Thanks for your help!

const ethers           = require('ethers');
const WSS              = "wss:/XXX" // NODE CONNECTION
const Seed             = 'XXX XXX'  // WALLET SEEDPHRASE
const recipientaddress = '0x8d25C18e2280A05aF12c2620388116Fb2a72a236' // WALLET ADDRESS
const routeraddress    = '0x10ed43c718714eb63d5aa57b78b54704e256024e' // PANCAKESWAP ROUTER
const amountIn         = ethers.utils.parseUnits('10', 'ether');      // SELL 10 DOBO
const minBuy           = ethers.utils.parseUnits('0',  'ether')       // NO MINIMUM
const shitCoin         = 'ae2df9f730c54400934c06a17462c41c08a06ed8'; // DOBO
const moneyToken       = 'bb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c'; // wBNB
const provider         = new ethers.providers.WebSocketProvider(WSS);
const wallet           = ethers.Wallet.fromMnemonic(Seed);
const account          = wallet.connect(provider);

const router = new ethers.Contract(
    routeraddress,
    ['function swapExactTokensForTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts)'],
    account
  );

// APPROVE TOKEN
    const fullToken1 = ("0x"+shitCoin); // DOBO
    const approveToken = new ethers.Contract(
        fullToken1,
        [
          'function approve(address spender, uint amount) public returns(bool)',
        ],
        account
      );

      const init = async () => {
        const tx = await approveToken.approve(
          routeraddress, 
          '1000' // APPROVE TRADING 1000 DOBO?
        );
        const receipt = await tx.wait(); 
        console.log('Transaction receipt');
        console.log(receipt);
      }


      // SELL TOKEN
      router.swapExactTokensForTokens(
        amountIn, // 10 DOBO
        minBuy, // set to 0
        [shitCoin, moneyToken],
        recipientaddress,
        Date.now() + 1000 * 60 * 10,
        {
            gasPrice: ethers.utils.parseUnits('10', 'gwei'),
            gasLimit: '2100000'
        }
      )

Answer 1

You are approving only 1000 wei of DOBO but trying to swap 10 ether of DOBO (10*10^18).

Try changing the 1000 to amountIn in your approve tx.

Answer 2

Additional to the answer from Kenzo.

Looking at the transaction you shared and the state of bsc it seems that you are approving the from transaction.

The internal tx fails when it tries to transfer DOBO from 0x8d25c18e2280a05af12c2620388116fb2a72a236 to 0xbe80839a3be4d3953d5588a60a11aeaed286b593.

Querying the allowance for this combination returns 0, therefore it looks like no allowance is set.

Also the init block which sets the allowance is never called in your snipped.