    function liquidatePositionBadDebt(address owner, uint256 repayAmount) external whenNotPaused {
        // validate params
        if (owner == address(0) || repayAmount == 0) revert CDPVault__liquidatePosition_invalidParameters();

        // load configs
        VaultConfig memory config = vaultConfig;
        LiquidationConfig memory liqConfig_ = liquidationConfig;

        // load liquidated position
        Position memory position = positions[owner];
        DebtData memory debtData = _calcDebt(position);
        uint256 spotPrice_ = spotPrice();
        if (spotPrice_ == 0) revert CDPVault__liquidatePosition_invalidSpotPrice();
        // verify that the position is indeed unsafe
        if (_isCollateralized(calcTotalDebt(debtData), wmul(position.collateral, spotPrice_), config.liquidationRatio))
            revert CDPVault__liquidatePosition_notUnsafe();

        // load price and calculate discounted price
        uint256 discountedPrice = wmul(spotPrice_, liqConfig_.liquidationDiscount);
        // Ensure that the debt is greater than the collateral at discounted price
        if (calcTotalDebt(debtData) <= wmul(position.collateral, discountedPrice)) revert CDPVault__noBadDebt();
        // compute collateral to take, debt to repay
        uint256 takeCollateral = wdiv(repayAmount, discountedPrice);
        if (takeCollateral < position.collateral) revert CDPVault__repayAmountNotEnough();

        // account for bad debt
        takeCollateral = position.collateral;
        repayAmount = wmul(takeCollateral, discountedPrice);
    @>>    uint256 loss = calcTotalDebt(debtData) - repayAmount;

        // transfer the repay amount from the liquidator to the vault
        poolUnderlying.safeTransferFrom(msg.sender, address(pool), repayAmount);

        position.cumulativeQuotaInterest = 0;
        position.cumulativeQuotaIndexLU = debtData.cumulativeQuotaIndexNow;
        // update liquidated position
        position = _modifyPosition(
            owner,
            position,
            0,
            debtData.cumulativeIndexNow,
            -toInt256(takeCollateral),
            totalDebt
        );

        pool.repayCreditAccount(debtData.debt, 0, loss); // U:[CM-11]
        // transfer the collateral amount from the vault to the liquidator
        token.safeTransfer(msg.sender, takeCollateral);

        int256 quotaRevenueChange = _calcQuotaRevenueChange(-int(debtData.debt));
        if (quotaRevenueChange != 0) {
            IPoolV3(pool).updateQuotaRevenue(quotaRevenueChange); // U:[PQK-15]
        }
    }
    function calcTotalDebt(DebtData memory debtData) internal pure returns (uint256) {
@>>        return debtData.debt + debtData.accruedInterest; //+ debtData.accruedFees;
    }
   function liquidatePosition(address owner, uint256 repayAmount) external whenNotPaused {
        //skip ........
        uint256 newDebt;
        uint256 profit;
        uint256 maxRepayment = calcTotalDebt(debtData);
        uint256 newCumulativeIndex;
        if (deltaDebt == maxRepayment) {
            newDebt = 0;
            newCumulativeIndex = debtData.cumulativeIndexNow;
@>>            profit = debtData.accruedInterest;
            position.cumulativeQuotaInterest = 0;
        } 

        //skip ........
    }
