Setting default language and logo

Hi.
I have 2 questions for now.
Installed Fundingpress in WordPress (Xampp).
I set a new logo, but it is only shown on homepage. On the other pages it still shows the original Fundingpress logo.
How can I fix that?

I also installde the ‘loco-translate 1.5.5’ plugin. The tranlations work well but how can I set a default language for Fundingpress instead of English?
In my case it is ‘pt-br’ (Brazilian Portuguese).
Thans