PHP 8.x Fatal Error

Hi team,

First of all thank you for this great plugin !

I encountered a PHP Fatal Error when trying to edit an existing carousel in the WordPress admin panel. The edit page renders completely blank (only title and sidebar are shown) due to a type error in PHP 8.x.

PHP Fatal Error Log:

PHP Warning: Trying to access array offset on false in /wp-content/plugins/wp-carousel-free/admin/views/sp-framework/fields/gallery/gallery.php on line 52
PHP Warning: Trying to access array offset on false in /wp-content/plugins/wp-carousel-free/admin/views/sp-framework/fields/gallery/gallery.php on line 53
PHP Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, false given in /wp-content/plugins/wp-carousel-free/admin/views/sp-framework/fields/gallery/gallery.php:66
Stack trace:
#0 /wp-content/plugins/wp-carousel-free/admin/views/sp-framework/fields/gallery/gallery.php(124): SP_WPCF_Field_gallery->getting_image_metadata()

Cause: It seems wp_get_attachment_metadata() returns false (likely for an image/attachment that was deleted or missing from the Media Library), and getting_image_metadata() passes that false value directly into array_key_exists(). In PHP 8+, this throws a Fatal TypeError.

Could you please patch this in the next release?

Thanks!