We would have to see your solution which throws the error 132.

You'll get used to it in no time, have fun.

you're literally only writing a function that returns a string.

Make a simple function called greet that returns the most-famous "hello world!".

I can't see how can you make that more clear. It's like that on every kata, you only create a function (except a few ones where you need to write a regular expression only for instance). You don't use a main method here on Codewars.

See the initial code for C++:

public class HelloWorld {
  // Write a public static function `greet` that returns "hello world!"
}