Hello
I am a system and network administrator, with more than 10 years of experience.
I worked with different services and servers, particularly, designing of a local data center, management of local and remote sites, and cloud environments. The above-mentioned experience includes work with virtualization technologies, mostly based on VMWare products, cloud services such as AWS, DigitalOcean, and etc. I have proven knowledge of networking and security, thanks to the work experience and Cisco training sessions I participated. The short list of the servers and services include but are not limited to: Web Server (Apache, Nginx, IIS), Mail Server (Postfix, Exim, PowerMTA), DNS Server (BIND, Unbound, MS DNS), Firewalls (Iptables, PFSense, etc.), basic scripting (BASH) etc.
As for the project, Which version of ubuntu do you use? I was able to install quickbox on my Ubuntu 16 located on AWS. I think your problem is related to APT services, not quickbox
Thank you for considering my application.
Regards
Eduard