Fatal error: Uncaught Error: Call to undefined function uAfrica_Shipping\app\woocommerce_register_additional_checkout_field() in /usr/www/users/charldcsuk/wp-content/plugins/uafrica-shipping/app/class-woocommerce.php:533
Stack trace:
#0 /usr/www/users/charldcsuk/wp-includes/class-wp-hook.php(324): uAfrica_Shipping\app\WooCommerce::register_checkout_field('')
#1 /usr/www/users/charldcsuk/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)
#2 /usr/www/users/charldcsuk/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#3 /usr/www/users/charldcsuk/wp-content/plugins/woocommerce/includes/class-woocommerce.php(712): do_action('woocommerce_ini...')
#4 /usr/www/users/charldcsuk/wp-includes/class-wp-hook.php(324): WooCommerce->init('')
#5 /usr/www/users/charldcsuk/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#6 /usr/www/users/charldcsuk/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#7 /usr/www/users/charldcsuk/wp-settings.php(643): do_action('init')
#8 /usr/www/users/charldcsuk/wp-config.php(91): require_once('/usr/www/users/...')
#9 /usr/www/users/charldcsuk/wp-load.php(50): require_once('/usr/www/users/...')
#10 /usr/www/users/charldcsuk/wp-blog-header.php(13): require_once('/usr/www/users/...')
#11 /usr/www/users/charldcsuk/index.php(17): require('/usr/www/users/...')
#12 {main}
  thrown in /usr/www/users/charldcsuk/wp-content/plugins/uafrica-shipping/app/class-woocommerce.php on line 533