I laughed so hard when I saw the issues and the non-English description

And I laughed even harder when I successfully submitted my solution.

1. This Kata needs more than one unique fixed test!
2. This Kata needs random test cases!!!
3. Like your previous Kata, this Kata is even easier than the two entry-level Kata here on Codewars, Multiply and Broken Greetings - like I said earlier, you don't learn algebra just to sign up for a class on basic arithmetic! You should try to author harder Kata next time - Codewars already has plenty of 8kyu Kata and many (8kyu Kata) are harder than this.

Traducción Española:

1. Este Kata necesita más de una prueba fija única!
2. Este Kata necesita casos de prueba aleatorios !!!
3. Al igual que tu Kata anterior, este Kata es aún más fácil que los dos Kata de nivel de entrada aquí en Codewars, Multiply y Broken Greetings - como dije antes, no aprendes álgebra solo para firmar ¡Para una clase de aritmética básica! Usted debe tratar de autor Kata más difícil la próxima vez - Codewars ya tiene un montón de 8kyu Kata y muchos (8kyu Kata) son más difíciles que esto.

The Kata author has added an English translation to the description.

and he should also make something more challenging...
P.S.: I got more fun translating from spanish to english... :-D

should also put it in English

Not that I'd like to see non-English-only kata on a regular basis, Spanish looks like a nice puzzle. It's OK-ish to read since there're a lot of words of Roman origin in English.
función -> function, devuelve -> devolves, contenedor -> container, código -> code, recibir -> recieve, datos -> data, entrada -> entrance, otro -> other, permite -> permits, ejecutarla -> execute, tipo -> type, caracteres -> characters, caso -> case, hola -> hello, idea -> idea, resolver -> resolve
Left to be learned are pretty much most basic words. The hardest thing is cadena.

Algunas cosas a tener en cuenta:

1. Este Kata es demasiado fácil incluso para 8kyu - y esto es un Issue no solo mi opinión personal en este caso porque incluso los dos Kata de nivel de entrada en este sitio, Multiply y Broken Greetings (no pudo encontrar el enlace a él por alguna razón - el Kata debe haber sido retirado o algo) son un poco más difíciles que esto. No puedo recordar que Codewarrior dijo esto (en otro Kata), pero metafóricamente hablando, no aprendes álgebra sólo para inscribirte en una clase de aritmética básica.
2. [Sugerencia] No sería malo para proporcionar una traducción al Inglés a su descripción de la suya, ¿verdad? Tuve que copiar y pegar la descripción en Google Translate sólo para entender lo que se espera en este Kata. Yo, por ejemplo, vengo de Hong Kong, donde nuestra lengua nativa es cantonesa (escrito: chino), pero ninguno de mis Kata está en chino.

A few things to note:

1. This Kata is way too easy even for 8kyu - and this is an Issue not just my personal opinion in this case because even the two entry-level Kata in this site, Multiply and Broken Greetings (couldn't find the link to it for some reason - the Kata must have been retired or something) are somewhat more challenging than this. I can't remember which Codewarrior said this (in another Kata) but metaphorically speaking, you don't learn algebra just to sign up for a class on basic arithmetic.
2. [Suggestion] It wouldn't hurt to provide an English translation to that description of yours, would you? I had to copy and paste the Description into Google Translate just to understand what is expected in this Kata. I, for example, come from Hong Kong where our native tongue is Cantonese (written: Chinese) but not a single one of my Kata is in Chinese.

If you don't know the language, then skipt it...
I thought is was cool to see spanish, so I gave it a go. I'm also trying to
learn spanish as well as programming.

Your audience will be greater if you write your kata in English.

For all of me, you can compose them in Klingon. I wouldn't be able to read that either.

All: Is it actually policy kata have to be written in English? Can you provide a reference for that?

I think your kata must be written in English.

The Language on CodeWars is english! Please change your description!

Should have more tests with different names to return, like "Hola " + name + ", bienvenido!"