[SalesForce] Remote Action Issues

Below is my Apex and JS code for my remote action. When I try to run this code I get an error message that says 'Unable to invoke action 'CheckOutLoadingDock.saveNewOrder': no controller and/or function found' and 'Context incomplete – authorization not provided.' Does anybody know why this is happening? Thank you in advance for your help

JS Code

CCRZ.pubSub.on("view:cartCheckoutView:refresh", function(cartCheckoutView) {
            cartCheckoutView.saveLoadingDock = function() {
                    let remoteCall =_.extend(CCRZ.RemoteInvocation, {className: 'CheckOutLoadingDock'});
                    remoteCall.invokeCtx('saveNewOrder', $('input[name="loadingdock"]:checked').val(), CCRZ.pagevars.currentCartID,
                    function (resp, event) {
                        console.log('MRAddToCartCustom:getUserDetails:Start');
                        if (event.status) {
                            console.log('MRAddToCartCustom:getUserDetails:status: ', event.status);
                            if (resp && resp.success) {
                                console.log('MRAddToCartCustom:getUserDetails:success: ' + JSON.stringify(resp.data));
                                CCRZ.currentUser.loadingDock = resp.data;
                            } else {
                                //handle response error here
                                console.log('MRAddToCartCustom:getUserDetails:Error: ' + JSON.stringify(resp.messages));
                            }
                        } else {
                            //handle standard RemoteAction failure here
                            console.log('MRAddToCartCustom:getUserDetails:Error ' + JSON.stringify(resp));
                        }
                    },
                    {
                        buffer: false, // this call will be executed by itself
                        nmsp: false  // defines that this is a call to a subscriber class
                    }); // end invokeCtx call
                }
                cartCheckoutView.events['click .cc_process_user_info'] = 'saveLoadingDock';
                cartCheckoutView.delegateEvents();
            });

Apex Code

global with sharing class CheckOutLoadingDock {
    @RemoteAction
    global static ccrz.cc_RemoteActionResult saveNewOrder(ccrz.cc_RemoteActionContext ctx, String loadingDockInfo, String cartId ){
        ccrz.cc_RemoteActionResult res = ccrz.cc_CallContext.init(ctx);
        try{
            List<ccrz__E_Cart__c> currentCart = [SELECT Id, Loading_Dock_Test__c FROM ccrz__E_Cart__c WHERE Id =:cartId];
            currentCart[0].Loading_Dock_Test__c = loadingDockInfo;
            update currentCart;
            res.success = true;
        }catch(Exception e){
            ccrz.ccLog.log(LoggingLevel.ERROR,'Err',e);
        }finally{
            ccrz.ccLog.close(res);
        }
        return res;
    }
}