Meteor deploy error on meteor host

I have an app without database functionality today I added some simple sitemap
code with Mongo collection to app and test it locally all of things
worked well but when I deployed application to meteor hosting with meteor deploy command my app crashed. I give this detail from meteor logs command:

[Wed Jun 24 2015 08:01:42 GMT+0000 (UTC)] WARNING MongoError: auth fails
at Object.Future.wait
(/meteor/dev_bundles/0.4.18/lib/node_modules/fibers/future.js:398:15)
at new MongoConnection (packages/mongo/mongo_driver.js:213:1)
at new MongoInternals.RemoteCollectionDriver
(packages/mongo/remote_collection_driver.js:4:1)
at Object.<anonymous> (packages/mongo/remote_collection_driver.js:38:1)
at Object.defaultRemoteCollectionDriver
(packages/underscore/underscore.js:750:1)
at new Mongo.Collection (packages/mongo/collection.js:98:1)
at app/server/sitemap.js:1:44
at app/server/sitemap.js:22:3
at
/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/boot.js:222:10
at Array.forEach (native)
- - - - -
at Object.toError
(/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/utils.js:114:11)
at
/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/db.js:1194:31
at
/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/db.js:1903:9
at Server.Base._callHandler
(/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/connection/base.js:453:41)
at
/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/connection/server.js:487:18
at [object Object].MongoReply.parseBody
(/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/responses/mongo_reply.js:68:5)
at [object Object].<anonymous>
(/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/connection/server.js:445:20)
at [object Object].emit (events.js:95:17)
at [object Object].<anonymous>
(/meteor/containers/9d7d4183-ba55-fb30-3eb2-d6bceabe37e2/bundle/programs/server/npm/mongo/node_modules/mongodb/lib/mongodb/connection/connection_pool.js:207:13)
at [object Object].emit (events.js:98:17)
[Wed Jun 24 2015 08:01:42 GMT+0000 (UTC)] ERROR Application crashed with code:
8
[Wed Jun 24 2015 08:01:42 GMT+0000 (UTC)] INFO STATUS running -> waiting
[Wed Jun 24 2015 08:01:45 GMT+0000 (UTC)] INFO HIT / 89.165.17.140

And this is my sitemap.xml code:

Pages = new Mongo.Collection("pages");

// https://atmospherejs.com/gadicohen/sitemaps
sitemaps.add('/sitemap.xml', function() {

    var out = [], pages = Pages.find().fetch();
    out.push({
        page: '/',
        lastmod: new Date(),
        changefreq: 'always'
    });
    _.each(pages, function(page) {
        out.push({
            page: page.url,
            lastmod: page.lastUpdated,
            changefreq: 'weekly'
        });
    });
    return out;
});

Please guide me how to fix this issue on deployment. On the local machine all things working right. )-:


After two days there is still a problem. My site is still not available and this is error:

This site has crashed.
Site administrators can examine the logs with:
meteor logs example.com
Retrying in x seconds...

And this is my question in stackoverflow

I try redploy later but noting fixed but after delete application and then redeploy with below command all of things working now:

meteor deploy xxx.meteor.com --delete
meteor deploy xxx.meteor.com

Special Thanks to Akshat