gas estimation error

[003-kalki]

Q)Why am I getting this error ? "Gas estimation errored with the following message (see below). The transaction > execution will likely fail"
-> withdraw function is showing infinite gas in remix ide

error:
Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending?
Returned error: {"jsonrpc":"2.0","error":"execution reverted: You need to spend more ETH!","errorData":"0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000001b596f75206e65656420746f207370656e64206d6f726520455448210000000000","id":1456657711424373}

code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "./PriceConverter.sol";

error NotOwner();

contract FundMe {
using PriceConverter for uint256;

mapping(address => uint256) public addressToAmountFunded;
address[] public funders;

// Could we make this constant?  /* hint: no! We should make it immutable! */
address public /* immutable */ i_owner;
uint256 public constant MINIMUM_USD = 50 * 10 ** 18;

constructor() {
    i_owner = msg.sender;
}

function fund() public payable {
    require(msg.value.getConversionRate() >= MINIMUM_USD, "You need to spend more ETH!");
    // require(PriceConverter.getConversionRate(msg.value) >= MINIMUM_USD, "You need to spend more ETH!");
    addressToAmountFunded[msg.sender] += msg.value;
    funders.push(msg.sender);
}

function getVersion() public view returns (uint256){
    // ETH/USD price feed address of Sepolia Network.
    AggregatorV3Interface priceFeed = AggregatorV3Interface(0x694AA1769357215DE4FAC081bf1f309aDC325306);
    return priceFeed.version();
}

modifier onlyOwner {
    // require(msg.sender == owner);
    if (msg.sender != i_owner) revert NotOwner();
    _;
}

function withdraw() public onlyOwner {
    for (uint256 funderIndex=0; funderIndex < funders.length; funderIndex++){
        address funder = funders[funderIndex];
        addressToAmountFunded[funder] = 0;
    }
    funders = new address[](0);
    (bool callSuccess, ) = payable(msg.sender).call{value: address(this).balance}("");
    require(callSuccess, "Call failed");
}

}

[alfaqi]

...
Returned error: {"jsonrpc":"2.0","error":"execution reverted: You need to spend more ETH!","errorData":"0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000001b596f75206e65656420746f207370656e64206d6f726520455448210000000000","id":1456657711424373}
...

just send more ETH