The default language setting for the dashboard and editor-interface is Dutch. It is, however, possible to change this to English versions.
Make sure you're in the dashboard (not in the editor) and hover over your Account Name in the top right of the screen. A menu will drop down and one of the options says English Version, clicking this will then refresh the dashboard in the English language.
Repeat again if you would revert back to the Dutch language, but this time clicking Dutch Version.