Gitlab EE Helm Tiller EKS installation stuck

I’m connecting a project from Gitlab EE to EKS. Following the instructions, I solved some of the issues that appeared. However, now, after pressing install for Helm Tiller, seems to be stuck showing “Installing…” but nothing else happens. Tried of course reload the page and it still shows is working.

Is any way to get a log of what could be happening, where is it stuck?

Edit: finally I got a message:

Something went wrong while installing Helm Tiller

Installation timed out

So the question remains, how can I check what went wrong?