Logo in the header

Hi, I have a problem with my wordpress website. I use a theme created by an agency and since the last update I made, I encountered some anomalies with the Redux Framework plugin.
With this plugin I was forced to deactivate it because the site was buggy.
With deactivation, the logo in the header disappeared (customizable from the “appearance” section only if I activate the Redux plugin). How can I insert the logo without necessarily relying on Redux?
Thank you

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