Can't build on ubuntu server

[IKrajciova]

Hello,
I am trying to deploy voyager on Ubuntu server, but I am experiencing issue when I run "yarn build". It is always crashing and I must reboot the server.

Steps of deployment are:

• git clone https://github.com/vega/voyager.git voyager
• cd voyager
• yarn
• yarn build

Dependencie:
yarn version 1.19.0
npm version 6.4.1
nodejs version v8.10.0
Ubuntu server 18.0.4 LTD

Please help.
Iveta