Trouble with function and shortcode

Hi, I would like to add a shortcode in my wordpress site where inside a child theme file I create a dedicated CTA.
To do this I inserted the following code in the function.php file:

function fn_manutenzione() {
	$ctamanutenzionewordpress = include('cta-manutenzione-wordpress.php');
}
add_shortcode( 'cta-manutenzione-wordpress', 'fn_manutenzione' );

Subsequently, in the cta file, named cta-manutenzione-wordpress.php, I inserted the following text:

<div class = "text-container"><p style = "color: # 000;"> CTA Text </p></div>

Why now if I add the shortcode [cta-manutenzione-wordpress] it shows me the text twice but only at the top of the article and not where I inserted the shortcode?

• This topic was modified 3 years, 8 months ago by Mickyhood.