This widget will show the next fixture for a Premier League team on your website.

Noted That:

To install correctly this statsfc-next-fixture.zip.
Fisrt Download the statsfc-next-fixture.zip to your computer
Extract/Open statsfc-next-fixture.zip to Your Computer.
Then, Find readme.txt file inside statsfc-next-fixture.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 "statsfc-next-fixture.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 "statsfc-next-fixture.zip" Downloaded plugin from your computer, Where you downloaded statsfc-next-fixture.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "StatsFC Next Fixture" folder is added on left sidemenu. Now, Click on "StatsFC Next Fixture" folder.

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

8. Now you configure yourself oR Watch video tutorial below about StatsFC Next Fixture Configurtions and Settings or How to work "StatsFC Next Fixture" 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 "StatsFC Next Fixture" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is StatsFC Next Fixture
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide

Guide
Upload the `statsfc-next-fixture` folder and all files to the `/wp-content/plugins/` directory Activate the widget through the ‘Plugins’ menu in WordPress Drag the widget to the relevant sidebar on the ‘Widgets’ page in WordPress Set the StatsFC key and any other options. If you don’t have a key, sign up for free at statsfc.com You can also use the `[statsfc-next-fixture]` shortcode, with the following options: `key` (required): Your StatsFC key `team` (required): Team name, e.g., `Liverpool` `competition` (optional): Competition key, e.g., `EPL` `date` (optional): For a back-dated match, e.g., `2013-12-31` `timezone` (optional): The timezone to convert match times to, e.g., `Europe/London` (complete list) `default_css` (optional): Use the default widget styles, `true` or `false` `omit_errors` (optional): Omit error messages, `true` or `false`

Upload the statsfc-next-fixture folder and all files to the /wp-content/plugins/ directory
Activate the widget through the ‘Plugins’ menu in WordPress
Drag the widget to the relevant sidebar on the ‘Widgets’ page in WordPress
Set the StatsFC key and any other options. If you don’t have a key, sign up for free at statsfc.com

You can also use the [statsfc-next-fixture] shortcode, with the following options:

key (required): Your StatsFC key
team (required): Team name, e.g., Liverpool
competition (optional): Competition key, e.g., EPL
date (optional): For a back-dated match, e.g., 2013-12-31
timezone (optional): The timezone to convert match times to, e.g., Europe/London (complete list)
default_css (optional): Use the default widget styles, true or false
omit_errors (optional): Omit error messages, true or false

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Reffered: https://wordpress.org/