Please shortcode after content on single.php file

I have created shortcode using Advanced Layout Editor and now I would like to insert this shortcode at the end of the content of my single post template. I tested inserting the following code into my functions.pho file (found here: https://kriesi.at/support/topic/adding-av_button-shortcode-to-single-php/), which works, but it places the shortcode above the content. How can I change this to place it after the content?

• This topic was modified 5 years, 2 months ago by williamslyd.
• This topic was modified 2 weeks, 5 days ago by Yigit.
• This topic was modified 2 weeks, 5 days ago by Yigit.