Hi, I've previously been able to deploy my app made with meteor.js using mup deploy to my linode server but in the past few weeks I've not been able to deploy again from not just my pc, but also 3 other PCs of my colleagues. The URL of my website is http://make-a-difference.rahimafrooz.com

The two steps to deployement is given here https://github.com/arunoda/meteor-up
1. mup setup works
2. at mup deploy the terminal gets stuck for about 20 mins then it reports an error saying that permission is denied. I used to deploy it from my PC in the beginning but for some reason now it's not working. I've tried in 4 other PCs as well and the same error is shown