Facing issue while installing node on droplet

Hi,

I am following https://www.digitalocean.com/community/tutorials/how-to-set-up-a-node-js-application-for-production-on-ubuntu-16-04 link to deploy my node application to digital ocean. But when I am trying to install node using curl I am getting the following exception,

E: Failed to fetch http://sgp1.mirrors.digitalocean.com/ubuntu/dists/xenial-updates/main/binary-amd64/Packages.xz Hash Sum mismatch E: Failed to fetch http://sgp1.mirrors.digitalocean.com/ubuntu/dists/xenial-updates/universe/binary-amd64/Packages.xz 404 Not Found [IP: 103.253.144.50 80] E: Failed to fetch http://sgp1.mirrors.digitalocean.com/ubuntu/dists/xenial-updates/universe/i18n/Translation-en.xz 404 Not Found [IP: 103.253.144.50 80] E: Failed to fetch http://sgp1.mirrors.digitalocean.com/ubuntu/dists/xenial-updates/multiverse/binary-amd64/Packages.xz 404 Not Found [IP: 103.253.144.50 80] E: Some index files failed to download. They have been ignored, or old ones used instead. Error executing command, exiting.

I connected the server using ubuntu’s console with authentication and also using ssh, but this problem is still persisting.

Also tried removing var/lists directory and then tried to install node using apt-get but the didn’t succeeded.

Also can you please give me some link to deploy bitbucket repository on digital ocean ?

Thanks in advance.