Given inbound script is not working

[keval3]

(function runAction( /*GlideRecord*/ current, /*GlideRecord*/ event, /*EmailWrapper*/ email, /*ScopedEmailLogger*/ logger, /*EmailClassifier*/ classifier) {

    // Implement email action here

gs.info("GBSMDM inbound action");

    createRequest();

    function createRequest() {

        var userSysid;

        var reqgroup;

        var plant;

        var sub = email.subject.toString().toLowerCase();

        var urg = sub.indexOf('urg');

        gs.info(urg + " is the urgency");

        var gr = new GlideRecord('sys_user');

        gr.addQuery('email', email.from);

        gr.query();

        if (gr.next()) {

            userSysid = gr.sys_id;

        }

        var cart = new Cart();

        // add in cart, substitute your catalog item sys_id

        var item = cart.addItem('49dd78a3db427c50eeb8026dd3961902');

        gs.info("item"+item);

        cart.setVariable(item, 'description', email.body_html);

        gs.log("test");

        cart.setVariable(item, 'contact_type', 'email');

        cart.setVariable(item,'sub_heads','nurture_business');

        cart.setVariable(item,'requested_for','3336eb92dba9dc10a73ddf0bd39619bd');

        cart.setVariable(item,'sub_activities_vs','depot_update');

        cart.setVariable(item,'company','upl sas');

        cart.setVariable(item, 'subject', email.subject);

        cart.setVariable(item,'head_email',email.recipients);

        var rc = cart.placeOrder();

        //gs.info('ASK HR : - '+ rc.sys_id);

        // update shortdescription as Subject in RITM & task and set Requested group in RITM

        var ritm = new GlideRecord('sc_req_item');

        ritm.addQuery('request', rc.sys_id);

        ritm.query();

        if (ritm.next()) {

            if (urg == -1) {

                ritm.short_description = email.subject;

            } else {

                ritm.short_description = 'URGENT ' + email.subject;

            }

            ritm.watch_list = email.copied;

            ritm.update();

        }

        var sctask = new GlideRecord('pm_project_task');

        sctask.addQuery('parent', ritm.sys_id);

        sctask.query();

        if (sctask.next()) {

            if (urg == -1) {

                ritm.short_description = email.subject;

            } else {

                ritm.short_description = 'URGENT ' + email.subject;

            }

            sctask.watch_list = email.copied;

            sctask.update();

        }

        // add attachment to RITM

        var emailRec = new GlideRecord("sys_email");

        emailRec.addQuery("uid", email.uid);

        emailRec.orderByDesc("sys_created_on");

        emailRec.query();

        if (emailRec.next()) {

            GlideSysAttachment.copy("sys_email", emailRec.sys_id, "sc_req_item", ritm.sys_id);

        }

    }

})(current, event, email, logger, classifier);

[Kieran Anson]

The CartAPI is deprecated, you should be using the CartJS API to create requests https://developer.servicenow.com/dev.do#!/reference/api/xanadu/server/sn_sc-namespace/c_CartJSScoped