Hello, @anna_falc,
Apologies for any inconvenience caused. The problem you’re encountering is related to Full Site Editing, a feature within the theme. You can find more information about this feature in the following article: https://www.portotheme.com/forums/topic/unleashing-creative-freedom-with-porto-themes-full-site-editing-demos/
We hope this helps.
Best Regards,
PThemes Team.