I am getting an unusual error would love if anyone could help. I am trying to edit a vendor bill on field change and I am getting an error "TypeError h is undefined ". I have attached my code would love any help. Thanks

/**
 *@NApiVersion 2.x
 *@NScriptType ClientScript
 */
define(['N/record', 'N/ui/dialog'], function (record, dialog) {

    function BillEdit(bill_id) {
        var objRecord2 = record.load({
            type: record.Type.VENDOR_BILL,
            id: bill_id,
            isDynamic: true,
        });
        var bill_applied = objRecord2.getValue({
            fieldId: 'custbody49'
        });
        if (!bill_applied) {
            objRecord2.setValue({
                fieldId: 'custbody49',
                value: true,
                ignoreFieldChange: true
            });
            dialog.alert({
                title: 'Alert',
                message: 'Before Save'
            });
            var recordId = objRecord2.save({
                enableSourcing: true,
                ignoreMandatoryFields: true
            });
            dialog.alert({
                title: 'Alert',
                message: 'Saving the record is mandatory' + recordId
            });
        }
    }


    function fieldChanged(context) {
        var currentRecord = context.currentRecord;
        var cid = currentRecord.id;
        var objRecord = record.load({
            type: record.Type.ITEM_RECEIPT, 
            id: cid,
            isDynamic: true,
        });
        var fieldname = context.fieldId;
        if (fieldname == 'landedcostsourcetran2') {
            var Sourcetran1 = objRecord.getValue({
                fieldId: 'landedcostsourcetran2'
            });
            BillEdit(Sourcetran1);
        }
        if (fieldname == 'landedcostsourcetran3') {
            var Sourcetran2 = objRecord.getValue({
                fieldId: 'landedcostsourcetran3'
            });
            BillEdit(Sourcetran2);
        }
        if (fieldname == 'landedcostsourcetran12') {
            var Sourcetran3 = objRecord.getValue({
                fieldId: 'landedcostsourcetran12'
            });
            BillEdit(Sourcetran3);
        }
        if (fieldname == 'landedcostsourcetran13') {
            var Sourcetran4 = objRecord.getValue({
                fieldId: 'landedcostsourcetran13'
            });
            BillEdit(Sourcetran4);
        }
        if (fieldname == 'landedcostsourcetran19') {
            var Sourcetran5 = objRecord.getValue({
                fieldId: 'landedcostsourcetran19'
            });
            BillEdit(Sourcetran5);
        }
        if (fieldname == 'landedcostsourcetran20') {
            var Sourcetran6 = objRecord.getValue({
                fieldId: 'landedcostsourcetran20'
            });
            BillEdit(Sourcetran6);
        }
    }
    return {
        fieldChanged: fieldChanged
    }
});