Update cart button not working in custom theme cart page

It’s because of cart sessions clear past sesstions in below path

wp-admin –> WooCommerce –> Status –> Tools –> Clear all sessions

And because of missing code in cart page please find below code should be available in cart.php

<?php wp_nonce_field( ‘woocommerce-cart’ ); ?>

Changing your home network IP address

Open the Control Panel.
Click on the Network and Sharing Center icon.
In the View your active networks section, click the Local Area Connection or Ethernet link.
On the Local Area Connection or Ethernet Status window, click the Properties button.
In the Properties window, select the Internet Protocol Version 6 (TCP/IPv6) or Internet Protocol Version 4 (TCP/IPv4) connection and click the Properties button. The connection you select depends on the type of Internet protocol in use for your Internet or Network connection.
In the Internet Protocol properties window, select the Use the following IP address option if not already selected. Specify the new IP address you want to use. You also need to specify the subnet mask and default gateway.

Please find below code to get default post category

$args = array(
‘type’ => ‘post’,
‘hide_empty’ => 0
);
$categories = get_categories( $args );
echo $default_category = get_option(‘default_category’);

If this issue getting you have to increase max_allowed_packet in MySQL ini file

xampp –> mysql –> my.ini

max_allowed_packet = 1M –> max_allowed_packet = 16M

You will create two files header.php and footer.php.
Create a folder “include” in your theme directory.
Suppose that your theme directory is “aviweb” sites/all/themes/aviweb. Put header.php and footer.php file in “sites/all/themes/aviweb/include” theme folder.
By using html and php you can write code in header.php and footer.php.
Now you can include both files in page.tpl.php in header area and footer area like PHP.

<?php include_once($theme_path.’/include/header.php’); ?>

<?php include_once($theme_path.’/include/footer.php’); ?>

Make a backup of your Drupal instance (database).
Set your site on maintenance mode.(Click here)
Delete all the files & folders inside your original Drupal instance except for /sites and its sub-folders.
Warning: If your Drupal installation is built from a distribution your site will break if you delete the /profiles folder. Don’t delete the profile folder that corresponds to the distribution you installed, for example /profiles/kickstart if you installed Drupal Commerce Kickstart.
Copy all the folders and files except /sites from inside the extracted Drupal package [tar ball or zip package] into your original Drupal instance location.
Some updates do not include changes to setting.php and some do. If the update release includes changes to settings.php you will need to replace your old settings.php in …/sites/default/ with the new one, and then edit the site-specific entries (eg database name, user, and password) in the setting file.
If you have modified files such as .htaccess or robots.txt re-apply those changes to the new files.
If you have a favicon.ico file that was deleted replace it too
Login to your site as administrator
Run “update.php” by navigating to http://yourdrupalsitename/update.php and follow the process to update your Drupal instance
Disable maintenance mode.

To create front page template please find below steps

Create “page–front.tpl.php” template in current theme and copy the home page PHP code into that.
Next create one “Home” page and Promote as front page like below screenshot.

Once we done above steps it will work as front page with “page–front.tpl.php” code.