Live Blogging is a plugin that allows you to insert micro/live blogs into posts with automatic updating of the content.

Noted That:

To install correctly this live-blogging.zip.
Fisrt Download the live-blogging.zip to your computer
Extract/Open live-blogging.zip to Your Computer.
Then, Find readme.txt file inside live-blogging.zip and Open readme.txt.
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the the Tips Below.

Start the Tips:

1. First Download "live-blogging.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "live-blogging.zip" Downloaded plugin from your computer, Where you downloaded live-blogging.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Live Blogging" folder is added on left sidemenu. Now, Click on "Live Blogging" folder.

Noted that: If you do not see "Live Blogging" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Live Blogging Configurtions and Settings or How to work "Live Blogging" in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find "Live Blogging" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Live Blogging
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide
Live Blogging v2, like version 1, requires PHP version 5.2 and WordPress 3.0 or later. Please make sure you have these before you attempt to use the plugin. If you get errors whilst activating, it is likely that you are using a version of PHP before version 5.2. Live Blogging is installed and activated as per normal plugins. Once it has been activated, please read the FAQ about how to use it. Once you have installed Live Blogging, then it is most sensible to proceed to the Live Blogging settings, which is included in your ‘Settings’ panel in the admin area as ‘Live Blogging’. From here, you can enable functionality such as posting to Twitter, changing the method used for live blog updating and customising the style of the live blog entries. If you have installed a Meteor server and intend to use it to stream updates, you must also enter your Meteor server details and set the live blog update method to ‘Stream using Meteor’.

Guide

Live Blogging v2, like version 1, requires PHP version 5.2 and WordPress 3.0 or
later. Please make sure you have these before you attempt to use the plugin.
If you get errors whilst activating, it is likely that you are using a version
of PHP before version 5.2.

Live Blogging is installed and activated as per normal plugins. Once it has been
activated, please read the FAQ about how to use it.

Once you have installed Live Blogging, then it is most sensible to proceed to
the Live Blogging settings, which is included in your ‘Settings’ panel in the
admin area as ‘Live Blogging’. From here, you can enable functionality such as
posting to Twitter, changing the method used for live blog updating and
customising the style of the live blog entries.

If you have installed a Meteor server and intend to use it to stream updates,
you must also enter your Meteor server details and set the live blog update
method to ‘Stream using Meteor’.

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Reffered: https://wordpress.org/