I can not understand where the false

Tell us what’s happening:

  **Your code so far**

function sum(arr, n) {
// Only change code below this line

if(n <= 0) {
return 0;
} else {
return multiply(arr, n - 1) * arr[n - 1];
}
// Only change code above this line
}
sum([2, 3, 4], 1)
sum([2, 3, 4, 5], 3)
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36.

Challenge: Replace Loops using Recursion

Link to the challenge:

I don’t understand what you are asking.

the this thing does not run sir

It looks like in your base case you return 0. This 0 is being multiplied by your array entries. It looks like your function will return 0.