This is your second home widget box. To edit please go to Appearance > Widgets and choose 7th widget from the top in area 7 called Home Widget 2. Title is also manageable from widgets as well.
Startseite Widget 3
This is your third home widget box. To edit please go to Appearance > Widgets and choose 8th widget from the top in area 8 called Home Widget 3. Title is also manageable from widgets as well.