Automatic Translations

I would like to translate a website into Polish, but when I open the website, the customer support provides a script that I pasted, which worked only when I typed in the homepage URL. However, when I reload the page or move to the next page, the script stops working, and it also does not work if I enter a different page URL. How can I make it work using the free version of gt translate?

<script> if (typeof(Storage) !== "undefined") { 
if (localStorage.getItem("ChangeLanguageFirstTime") === null) { setTimeout(function() { 
const element = document.querySelector('a[data-gt-lang="es"]'); 
if (element) { 
element.click(); 
localStorage.setItem("ChangeLanguageFirstTime", true); 
} 
else { 
console.error('Element not found!'); } }, 3000); 
} 
} else { 
console.error('localStorage not supported in this browser!'); 
}

</script>