Translation not complete in German (DE)

Hello,

we have problems with the german translation of the travelwp theme.

#1 The widget Tour Search has no german translation so far.
#2 As well the translation within the product site, the tabs, are missing.
Description, Itinerary, Location, Reviews
#3 Price
#4 Within the product, the lenght of the tour: 2 Days – 1 Night (teaser on top left)
#5 The Tour-Search on the mainpage – no translation for: Tourname, Tourtype, Seach-Tours-Button. However, Destination was translated.

How can we translate those?

brgds