Warning: Undefined property: stdClass::$plugin

Hi,

I’m just finished updating or migating from Enfold 4.7 to 5.4. The problem is that everytime I hit the Plugins > Add New button the following error message comes up.
['all-in-one-wp-migration' => class stdClass { public $id = 'w.org/plugins/all-in-one-wp-migration'; public $slug = 'all-in-one-wp-migration'; public $plugin = 'all-in-one-wp-migration/all-in-one-wp-migration.php'; public $new_version = '7.70'; public $url = 'https://wordpress.org/plugins/all-in-one-wp-migration/'; public $package = 'https://downloads.wordpress.org/plugin/all-in-one-wp-migration.7.70.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '3.3'; public $upgrade = FALSE }, 'better-search-replace' => class stdClass { public $id = 'w.org/plugins/better-search-replace'; public $slug = 'better-search-replace'; public $plugin = 'better-search-replace/better-search-replace.php'; public $new_version = '1.4.2'; public $url = 'https://wordpress.org/plugins/better-search-replace/'; public $package = 'https://downloads.wordpress.org/plugin/better-search-replace.1.4.2.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '3.0.1'; public $upgrade = FALSE }, 'iwp-client' => class stdClass { public $id = 'w.org/plugins/iwp-client'; public $slug = 'iwp-client'; public $plugin = 'iwp-client/init.php'; public $new_version = '1.11.0'; public $url = 'https://wordpress.org/plugins/iwp-client/'; public $package = 'https://downloads.wordpress.org/plugin/iwp-client.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '3.1'; public $upgrade = FALSE }, 'popup-maker' => class stdClass { public $id = 'w.org/plugins/popup-maker'; public $slug = 'popup-maker'; public $plugin = 'popup-maker/popup-maker.php'; public $new_version = '1.17.1'; public $url = 'https://wordpress.org/plugins/popup-maker/'; public $package = 'https://downloads.wordpress.org/plugin/popup-maker.1.17.1.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '4.9'; public $upgrade = FALSE }, 'post-duplicator' => class stdClass { public $id = 'w.org/plugins/post-duplicator'; public $slug = 'post-duplicator'; public $plugin = 'post-duplicator/m4c-postduplicator.php'; public $new_version = '2.28'; public $url = 'https://wordpress.org/plugins/post-duplicator/'; public $package = 'https://downloads.wordpress.org/plugin/post-duplicator.2.28.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '4.0'; public $upgrade = FALSE }, 'simple-301-redirects' => class stdClass { public $id = 'w.org/plugins/simple-301-redirects'; public $slug = 'simple-301-redirects'; public $plugin = 'simple-301-redirects/wp-simple-301-redirects.php'; public $new_version = '2.0.7'; public $url = 'https://wordpress.org/plugins/simple-301-redirects/'; public $package = 'https://downloads.wordpress.org/plugin/simple-301-redirects.2.0.7.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '5.0'; public $upgrade = FALSE }, 'wp-mail-smtp' => class stdClass { public $id = 'w.org/plugins/wp-mail-smtp'; public $slug = 'wp-mail-smtp'; public $plugin = 'wp-mail-smtp/wp_mail_smtp.php'; public $new_version = '3.7.0'; public $url = 'https://wordpress.org/plugins/wp-mail-smtp/'; public $package = 'https://downloads.wordpress.org/plugin/wp-mail-smtp.3.7.0.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '5.2'; public $upgrade = FALSE }, 'wordpress-seo' => class stdClass { public $id = 'w.org/plugins/wordpress-seo'; public $slug = 'wordpress-seo'; public $plugin = 'wordpress-seo/wp-seo.php'; public $new_version = '20.1'; public $url = 'https://wordpress.org/plugins/wordpress-seo/'; public $package = 'https://downloads.wordpress.org/plugin/wordpress-seo.20.1.zip'; public $icons = [...]; public $banners = [...]; public $banners_rtl = [...]; public $requires = '6.0'; public $upgrade = FALSE }, 'custom-facebook-feed' => class stdClass { public $new_version = '4.3.4'; public $stable_version = '4.3.4'; public $package = 'https://smashballoon.com/edd-sl/package_download/NTI3NTc...='; public $download_link = 'https://smashballoon.com/edd-sl/package_download/NTI3NTc...='; public $slug = 'custom-facebook-feed'; public $name = 'Custom Facebook Feed WordPress Plugin Developer'; public $url = 'https://smashballoon.com'; public $homepage = 'https://smashballoon.com'; public $last_update = '2022-12-14 11:07:30'; public $id = 300; public $requires = ''; public $requires_php = ''; public $tested = '5.9.3'; public $sections = class stdClass { ... }; public $description = [...]; public $changelog = [...]; public $upgrade = TRUE }]

Other than the theme there are nothing else (no plugins) activated. This is the environment used

Wordpress: v6.1.1 (single-site)
Enfold: v5.4
Child Theme active

Local dev environment using Local (by Flywheel)
Server: Nginx
PHP: 8.0.22
MySQL: 8.0.16

Please advice.

//Seb