How to change language after last update?

Hi, I was trying the 1.0.5 update of the Tasman theme. I manually translated the 1.0.3 version with the included .po and .mo files that were located inside the “languages” folder.

With the new update, I can’t seem to find any of those files nor folder. How should I translate the theme into my own language? I tried copying the previous files into the same location, but didn’t work.

Thank you for your help.