When I press the ’email’ share button, a new blank page opens up with the following in the address bar:

mailto:?body=Check%20out%20this%20article%20I%20found%20on%20%27Hoopla%20%26%20Happiness%27%3A%0D%0A%0D%0APalace%20of%20Fine%20Arts%20%26%238211%3B%20San%20Francisco%0D%0Ahttp%3A%2F%2Fhooplahappiness.com%2Fpalace-of-fine-arts-san-francisco%2F&subject=Check%20out%20this%20article%20I%20found%20on%20%27Hoopla%20%26%20Happiness%27

How do I correctly configure this button?

https://wordpress.org/plugins/flare/