When you have configured a number of available languages in your online store, you will have to configure several options for each individual language. One of them involves the use of headlines. They have to be configured separately, for they are images and therefore cannot be translated automatically.
To solve this problem, navigate to GENERAL > Design > Contents > Headlines in the left menu of the back office, select the desired language tab and configure its headline. Repeat this process for all remaining available languages in your online store.