Errors with WP_DEBUG turned on

I get the following errors when using wp_recaptcha locally with WP_DEBUG turned on. They don’t effect the functionality of the plugin but it would be nice if they were sorted out for consistency and best practice:

Strict Standards: Redefining already defined constructor for class WPPlugin in /wp-content/plugins/wp-recaptcha/wp-plugin.php on line 28

Strict Standards: Redefining already defined constructor for class MailHide in /wp-content/plugins/wp-recaptcha/mailhide.php on line 15

Notice: Undefined index: rcommentid in /wp-content/plugins/wp-recaptcha/recaptcha.php on line 481

Notice: Undefined index: rchash in /wp-content/plugins/wp-recaptcha/recaptcha.php on line 482

https://ww.wp.xz.cn/plugins/wp-recaptcha/