PHP Deprecated messages

Hi, I received two deprecation messages. Is this something you could fix in a future version?

I use PHP 7.3.

Thanks in advance.

PHP Deprecated: Creation of dynamic property Language_Switcher::$admin is deprecated in /public_html/wp-content/plugins/language-switcher/includes/class-language-switcher.php on line 156

PHP Deprecated: Creation of dynamic property Language_Switcher_Admin_API::$parent is deprecated in /public_html/wp-content/plugins/language-switcher/includes/lib/class-language-switcher-admin-api.php on line 12