Cannot call functions off of a map

I got an error with Map function while List function is working well

```
z = [
  "Ghost",
  57.3,
  function (x1) {
    print("X * X")
    return x * x
  }
]

zz = {
    "name": "Ghost",
    "value": 57.3,
    "handler": function(zzz) { 
        print("zzz * zzz")
        return zzz * zzz
    }
}

print(z[2](5))
print(zz.handler(6))
```