it seems like that is a common problem. just installed cultures 2 and i am not able to build anything here. when i open the building list there is nothing. hope i can solve this, kinda mad about that. if you know what to do pls help me <3

Change the cultures professions so they will collect clay, quarrystone, wood. It will unlock new buildings. When you get a farm and a farmer you will even get more buildings.
You need to right click on a cultures viking and change their professions