How do I change the InstantSite interface Language?
This article will explain how you can change the interface language on your InstantSite.
Login to your 123 Reg control panel. Scroll down to the Create your website section and click on the InstantSite icon.
Click on the Login button next to the relevant InstantSite package.
Click on the Pages link.
Select the language from the drop down menu in the bottom left.
Click on the Save changes button.