Plugin causing error on sitemaps.xml

Hi, this plugin was causing errors on my sitemaps and feeds, adding 2 whitespaces to my code. The error I was receiving was: error on line 2 at column 6: XML declaration allowed only at the start of the document.

I deactivated all my plugins and activated one by one, turns out quick adsense was the one acusing this. I really like the plugin, hope there is a way to fix this.

https://wordpress.org/plugins/quick-adsense/