PAGE TRANSLATING ASSISTANT(h1)

You can try that tag translation process by using selectors of buttons...

Im using such a function for translating page tag's innerText:

    const changeLanguage = function () {
     const languageSet = sessionStorage.getItem("languageChosen") === "UK" ? 1 : 0;

        for (let key in translationDataBase) { //translationDataBase is JSON object variable, where all selectors are
            const element = document.querySelector(key);
            if (element !== null) {
                element.textContent = translationDataBase[key][languageSet];
            } else console.error(`There is no such selector ${key} in ur document...`);
        }
    };