Fatal PHP Error

I get the following error when trying to edit a category. I’m using WPML and Yoast. The Yoast fields do not show because of this error.

2023-03-15T05:47:07+00:00 CRITICAL Uncaught TypeError: ksort(): Argument #1 ($array) must be of type array, null given in /var/www/htdocs/wp-content/plugins/wpb-woocommerce-category-slider/admin/taxonomie-meta.php:177
Stack trace:

0 /var/www/htdocs/wp-content/plugins/wpb-woocommerce-category-slider/admin/taxonomie-meta.php(177): ksort()

1 /var/www/htdocs/wp-content/plugins/wpb-woocommerce-category-slider/admin/taxonomie-meta.php(205): wpb_wcs_plugin_icons_collections_for_iconpicker()

2 /var/www/htdocs/wp-includes/class-wp-hook.php(308): wpb_wcs_product_cat_icon_init()

3 /var/www/htdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()

4 /var/www/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action()

5 /var/www/htdocs/wp-admin/admin-footer.php(78): do_action()

6 /var/www/htdocs/wp-admin/term.php(75): require_once(‘…’)

7 {main}

thrown in /var/www/htdocs/wp-content/plugins/wpb-woocommerce-category-slider/admin/taxonomie-meta.php on line 177