Show full country name in Checkout error

Awesome @eljkmw! Your revised changes worked since I am using the standard error messages!

I am copying the complete code here in case anybody else would need it!

// Convert error message of ISO 2 country code into country name
function wc_error_convert_country_code( $message ) {
	$line1 = 'Unfortunately <strong>we do not ship to ';			// first half of the message
	$line2 = '</strong>. Please enter an alternative shipping address.';	// second half of the message

	// find $line1 sub-string in $message string
	$pos = strpos( $message, $line1 );	// get position of sub-string
	if ( $pos !== false ) {
		// Does $line1 has ' the' append to it ?
		if ( strpos( $message, ' the', $pos ) !== false ) {
			$country_code2 = substr( $message, strlen( $line1 )+4, 2 );	// reads ISO 2 country code
			$country_name = WC()->countries->countries[ $country_code2 ];	// converts to full country name
			$message = $line1 . ' the ' . $country_name . $line2;
		} else {
			$country_code2 = substr( $message, strlen( $line1 ), 2 );	// reads ISO 2 country code
			$country_name = WC()->countries->countries[ $country_code2 ];	// converts to full country name
			$message = $line1 . $country_name . $line2;				
		}
	}
	return $message;
}
add_filter( 'woocommerce_add_error', 'wc_error_convert_country_code' );

God bless you @eljkmw!