Solution for this topic

You have to overwrite the theme /inc/templates/copyrights.php file in your child theme then change all the function call jevelin_allowed_html_basic to custom_jevelin_allowed_html_basic then copy the functionjevelin_allowed_html_basic from the theme file /inc/hooks.php and add it in your child theme functions.php file and rename it to custom_jevelin_allowed_html_basic.

Now you can change the function custom_jevelin_allowed_html_basic however you want.