[Grace Themes]

Hi monique

Can you please share your website URL so we can check?

If you are using free theme, you can change the logo image height/width by
Go to Appearance -> Editor -> functions.php

at line no. 34 you will find the below code and change height and width

add_theme_support( 'custom-logo', array(
	'height'      => 100,
	'width'       => 100,
	'flex-height' => true,
) );

Regards
Grace Themes