[jQuery] Error in Jorn Form Validation Plugin

[jQuery] Error in Jorn Form Validation Plugin

Until yesterday my form with Jorn Form Validation Plugin worked fine only submitting after all required fields filled. Today I insert Dan G Switzer example to display error message in red colour. And my form dies! ;-)
After click in submit button appear an error in this part of jquery.validate.js( v1.0 beta 2):
check: function( element ) {
            element = this.clean( element );
            jQuery( element ).removeClass(
this.settings.errorClass );
            var rules = this.rules( element );
            for( var i = 0, rule; rule = rules[i++]; ) {
                try {
                    var result = jQuery.validator.methods
[rule.method]( jQuery.trim(element.value), element, rule.parameters );
                    if( result === -1 )
                        break;
                    if( !result ) {
                        jQuery(element).addClass(
this.settings.errorClass );
                        this.formatAndAdd( rule, element);
                        break;
                    }
                } catch(e) { // ***************************************** DEBUGGER STOPS HERE
                    this.settings.debug && window.console && console.error("exception occured when checking element " + <a href="http://element.id">element.id</a>
                         + ", check the '" +
rule.method + "' method");
                    throw e;
                }
            }
        },
What do you suggest to fix this error?
Cheers
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