MongoDB errors (modulus)

gistfile1.txt

Error: failed to connect to [mongo.onmodulus.net:27017]
    at null.<anonymous> (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/connection/server.js:569:74)
    at emit (events.js:106:17)
    at null.<anonymous> (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/connection/connection_pool.js:139:15)
    at emit (events.js:98:17)
    at Socket.<anonymous> (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/connection/connection.js:475:10)
    at Socket.emit (events.js:95:17)
    at net.js:440:14
    at process._tickCallback (node.js:419:13)

-------------------------------

Error: no open connections
    at Db._executeQueryCommand (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1705:21)
    at Cursor.nextObject (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:649:13)
    at Collection.findOne (/mnt/data/1/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/collection.js:1008:10)
    at /mnt/data/1/node_modules/connect-mongo/lib/connect-mongo.js:186:18
    at MongoStore._get_collection (/mnt/data/1/node_modules/connect-mongo/lib/connect-mongo.js:126:21)
    at MongoStore.get (/mnt/data/1/node_modules/connect-mongo/lib/connect-mongo.js:185:10)
    at Object.session [as handle] (/mnt/data/1/node_modules/express/node_modules/connect/lib/middleware/session.js:305:11)
    at next (/mnt/data/1/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at Object.methodOverride [as handle] (/mnt/data/1/node_modules/express/node_modules/connect/lib/middleware/methodOverride.js:37:5)
    at next (/mnt/data/1/node_modules/express/node_modules/connect/lib/proto.js:199:15)