Deploy build fails with no proper error message

I get the following error in the ionic pro deploy build, Don’t know what went wrong?

Running with gitlab-ci-multi-runner 9.1.0 ()
on ip-xx-x-xxx-xx()
Using Shell executor…
Running on ip-xx-x-xx-x…
Cloning repository…
Cloning into ‘/home/gitlab-runner/builds/xxxx/3/project-0’…