To change it, just go to Templates (admin sidebar) > Header (tab) and select the header you want to change and click on “Edit with Elementor”. You can also go to the home page and select the active header under the “Edit with Elementor” button (at the admin bar).
Then in the Elementor builder just click on the logo and upload a new image under the Image option.
Let us know if that helps! 🙂