Error message after editing functions.php

Hello,
I’ve come across this message:
Parse error: syntax error, unexpected ‘}’ in /home/elmag937/public_html/wp-content/themes/activello/functions.php on line 276

This happened after I tried to follow the instructions of this website (http://www.carrieloves.com/2014/11/how-to-automatically-add-a-signature-to-your-wordpress-posts/), to try and automatically add a signature to my wordpress posts.
I copied this into the functions.php area, at the end and pressed enter:
// Add Signature Image after single post add_action(‘genesis_after_entry_content’, ‘custom_include_signature’, 1); function custom_include_signature() { if(is_single()) { ?> <?php }}

But clearly I did it wrong, as I am still a novice to this whole blog/web designing thing. Ever since I edited things in the functions.php area, I have not been able to access my website (elrosaddiction.com) or my WordPress Admin account.

I am scared that I have lost all my hard work; I’d finished editing the site to my liking, and I just wanted to add a signature to all my posts. Is there a way to help me retrieve my website to how it was prior to me messing up the functions.php area, and enable me to access my WP Admin?

Best regards, E.

Duplicate Topic :

https://colorlibsupport.com/t/error-message-after-editing-functions-php