PHP error: Undefined array key "width" and "height"

Hello,

I am using a SVG as a logo and get two PHP errors in the menu plus module. The array keys for "width" and "height" are undefined. There is a link to the site in the private information. I already tried to reupload my SVG to fix the problem.

The Query Monitor plugin shows the following traceback:

    wp-content/plugins/gp-premium/menu-plus/functions/generate-menu-plus.php:2074 (or 2075)
    generate_do_navigation_branding()
    wp-includes/class-wp-hook.php:307
    do_action('generate_inside_navigation')
    wp-content/themes/generatepress/inc/structure/navigation.php:37
    generate_navigation_position()
    wp-content/themes/generatepress/inc/structure/navigation.php:221
    generate_add_navigation_after_header()
    wp-includes/class-wp-hook.php:307
    do_action('generate_after_header')
    wp-content/themes/generatepress/header.php:56
    load_template('wp-content/themes/generatepress/header.php')
    wp-includes/template.php:716
    locate_template()
    wp-includes/general-template.php:48
    get_header()
    wp-content/themes/generatepress/page.php:17

I think my problem is similar to this topic: https://generatepress.com/forums/topic/undefined-array-keys-in-menu-plus-component/