------------------- settings page
var PanelView = require("./widgets/panelview.js");
var SettingsNotificationPage = require("./settingsNotificationPage.js");

var SettingsPage = function(){
    this.page = null;
    this.create();
};

SettingsPage.prototype.create = function() {
    ....
    this.panelView = new PanelView(this.getItems(), true, true, this);

    this.panelView.on("tap", function(e, item) {
        var options = server.getOptions();

        switch (e.data.id) {
            ....
            case "permits": new SettingsNotificationPage("Permits", "permits", options).open(); break;
};


-------------- settings notification page

var PanelView = require("./widgets/panelview.js");

var SettingsNotificationPage = function(title, type, options){
    this.page  = null;
    this.title = title;
    this.type  = type;
    this.options = options;
    this.dirty = false;
    this.create();
};

SettingsNotificationPage.prototype.create = function() {
    var self   = this;
    var server = util.getServer();

    util.recordEvent("settingsNotification.view");

    ....
    // this.page = page;
    this.panelView = new PanelView(this.getItems(), true, true); // issue resides here, PanelView from import is {} instead of function
    this.refresh();
    this.page.append(this.panelView.control);

};