@julien-f Plugin works! Thank you.

@Strebor
You can download it from here:
https://download-ib01.fedoraproject.org/pub/epel/7/x86_64/Packages/a/apcupsd-3.14.14-18.el7.x86_64.rpm
and install.
That is easiest way.
Or you may enable epel repository and install from it.

I had same issue.
doing: git clean -d -f
and then running yarn build again helped.

@olivierlambert problem was fixed. Thank you for help.

@olivierlambert I've set up XOA trial. Will see if problem appear.

@olivierlambert I have remade backup when I saw the problem.
It went without problems.
I will monitor this further and report if it occurs on other VM's