Question
I added a new language to my help center. However, no option to switch languages appears on the help center.
Answer
The integrated language switcher in help center appears only with the default Copenhagen theme offered by Zendesk. If you remove the source code from the footer (footer.hbs) of the Copenhagen theme or if you use a custom theme, you will not see the button for switching the language.
Disclaimer: This article is provided for instructional purposes only. Zendesk does not support or guarantee the code. Zendesk also can't provide support for third-party technologies such as JavaScript, jQuery, or CSS. Post any issues you have in the comments section or try searching for a solution online.
To restore the option to switch a language in help center, you need to reinstall the Copenhagen theme in the Knowledge Admin settings. Make sure to click Set as live theme to activate it.
Another option is to to reach out to your developer and ask them to fix their code.