Add custom error for front end validation

custom_parsley_errors.php

<?php

add_filter('cartimize_front_end_parsley_errors', 'cartimize_custom_cartimize_front_end_parsley_errors', 10, 1);

function cartimize_custom_cartimize_front_end_parsley_errors( $value ){
	$value['parsley_errors']['shipping_address_1']= "Please enter your street address along with your house number";
	$value['parsley_errors']['billing_address_1']= "Please enter your street address along with your house number";
	return $value;
}