Notice on Debug with PHP 5.5

Hi,

I’m just testing on my localhost with PHP 5.5. When the WP DEBUG is active there’s a notice message:

Notice: Undefined variable: output in C:\xampp\htdocs\wp\wp-content\plugins\wordpress-plugin-for-simple-google-adsense-insertion\WP-Simple-Adsense-Insertion.php on line 19

Any plans to make adjustments so that plugin comes concordant with PHP 5.5?

Thanks for your time!

https://ww.wp.xz.cn/plugins/wordpress-plugin-for-simple-google-adsense-insertion/