Hi @Lola ,
welcome to Make! This is definitely a more advanced workflow
A few questions / thoughts:
a) there are credentials in the screenshots - those are example ones? Otherwise please change them now
b) I tried to access the website but I couldn’t visit it. (tried: http://japan77.cloud/cz/Account/Login)
c) How often do you want to do this?
Depending on your answers, I’d advise differently.
If you only use it a few times per week, you might set it up using HTTP modules (enable "share cookies with following HTTP modules).
If you use it a few hundred times per week (or sooner :D), I’d think about setting up a custom app. Thee you can have multiple API requests (login, download csv…) using one operation in Make. This is obviously more difficult than the first solution but after some usage this might be worth it.