I just solved the problem. Switched graphic on my geforce and it works. On integrated intel hd graphics 530 it didn't. My notebook is Lenovo Ideapad 700-15isk, windows 10.
Maybe someone had the problem with automatic counting modules and kWp when you select modules? Text that don't display is for example: "5 Modules (1,5 kWp)".
We have the newest version of the software. It's don't work just on one computer, on other it's fine.