Providing Polish translations

Hello, I'm really interested in this project for our vacation homes (watahazawoz.pl). Our current solutions are very basic (mobile-calendar.com, too many issues and lack of support) and I'm trying to find a suitable alternative. I was trying out some WordPress booking/property rental systems but all are too hard to configure and use for a non-programmer like me. Your app seems like the best choice (I have also seen Your channel manager) but it lacks Polish translations in many places.

I would be happy to contribute in this area but I'm unable to find proper strings. I have translated many apps and game mods mainly using Crowdin or Weblate but also plain .po file editing. Perhaps You could set up something like that to ease the translating process?

Examples of untranslated texts: