Srihari Thalla

I believe the author might be unavailable or have abandoned/forgotten about this plugin.

(BTW, I have posted a fix in case someone interested – [Patch] Enqueue style and script only when used in Dashboard)

And consider loading JS script in the footer. Just that it’s better to load JS files in the footer.

wp_enqueue_script('cfblbjs', plugins_url('/cardozafacebook.js', __FILE__), array('jquery'), false, true);

The API provided by webrupee.com is again down – and the website is down.

WPBeginner has a lot of resources regarding WordPress. This will give you a better idea.

https://www.wpbeginner.com/wp-themes/how-to-create-a-wordpress-child-theme-video/

Test this:

Create a folder “mytheme”.
Create a file “style.css” inside mytheme folder.

Add this text inside style.css:

/*
 Theme Name:   Twenty Twelve Child
 Theme URI:    https://example.com/
 Description:  Child Theme
 Author:       John Doe
 Author URI:   https://example.com
 Template:     twentytwelve
 Version:      1.0.0
*/

@import url("../twentytwelve/style.css");

/* =Theme customization starts here
----------------------------------------------------- */
p { font-size: 50px;}

Now zip the folder “mytheme” -> name it mytheme.zip (or something else)

Upload and activate – Open your site and check if it works.
If it works, then everything is alright.

**You just have to add only those files from parent theme (original theme) – which you want to make changes.

The API is back online.

Zip your Child Theme and name it something like “childtheme.zip”

In you Dashboard, go to Appearance -> Themes and click on Add New and then click on Upload.

For example,
https://example.com/wp-admin/theme-install.php?tab=upload
replace example.com with your domain name.

Upload the zipped Child Theme and activate it!