[Gelöst] I can't find a string and I've been looking everywhere to my knowledge

Background of the issue:
I have a webshop at versteckter Link and I am trying to correct a shop-mark that displays the wrong information. The shopmark belongs to Germanized for Woocommerce, and it currently shows 'ex 25% VAT' instead of 'incl 25% VAT'. The English version is correct, so I believe this is a translation issue. I have searched through the string translator and the 'Can't find the string you're looking for?' section but couldn't locate the string.

Symptoms:
The shop-mark on the German version of the webshop displays 'ex 25% VAT' instead of 'incl 25% VAT'.

Questions:
Where can I find the string for the shop-mark in the other languages version?
How can I correct the translation for the shop-mark in WPML?