Uncaught TypeError: Cannot read property 'call' of undefined
Replace minlen with minlength, and it works, there is no minlen property, so call fails internally
$('form').validate({ rules: { first_name: { minlength: 3, // <- here maxlength: 15, required: true }, last_name: { minlength: 3, maxlength: 15, required: true }, ..........
Generally speaking this is an error that can be raised if you have set a non valid jQuery validation rule.
You can find the valid validation rules using this link.
$(document).ready(function() { jQuery.validator.addMethod("noSpace", function(value, element){ return value.indexOf(" ")<0 && value !==""; }, "Space are not allowed");});