Ethernaut #11 Elevator, Gas estimation failed

I’m trying to solve Ethernaut #11 Elevator. My solution works when I deploy a copy of the instance contract by myself on Remix VM, but when I try it on the real instance on the Rinkeby network, using Remix’s Injected Provider – Metamask, calling the function goToTop() gives a "Gas estimation failed". I have also tried others’ solutions that I have found online, and they all give me the same error.

My solution:

pragma solidity ^0.6.0;  contract Elevator {   function goTo(uint _floor) public {} }   contract Attack {    Elevator public e;   bool public toggle = true;    constructor(address target) public {     e = Elevator(target);   }    function goToTop() public {     uint top = 0;     top -= 1;     e.goTo(top);   }    function isLastFloor(uint) external returns (bool) {     toggle = !toggle;     return toggle;   } }