There are two types of text on the website. Current regions that are directly on a page or on page properties from, and system-produced texts, which are translated using a text editor tool.
To a text on a content page, you need to turn on the page eriting mode. See "editing pages" for that.
For editing automatic texts (like buttons and other text strings) you need to go to adminstrator panel.
Select the language you wish to translate on the menu. Then select missing words list, and click apply.
You will get a list of missing words. If there is not a translation for a word, the system will automatically show an english word on it's place.