Solidity 30 day Challenge "Second largest element" second test keep failing

Im trying to solve "Second largest element" task in 30 day Solidity challenge.

I'm having trouble with solving the Test 2. I run the solution through other test case and result was success. But it keep failing for Test 2 of this solution.

Solution

function secondMax(uint256[] memory arr, uint256 size) public pure returns(uint256) {
            for (uint256 i = 0; i < size - 1; i++) {
                for (uint256 j = i + 1; j < size; j++) {
                    if (arr[i] < arr[j]) {
                        uint256 temp = arr[i];
                        arr[i] = arr[j];
                        arr[j] = temp;
                    }
                }
            }

            return arr[1];
        }

Error

Test 2: Error: value out-of-bounds (argument=null, value=-7, code=INVALID_ARGUMENT, version=abi/5.0.7)